Suprapto Editor

Endah Retnowati has been teaching at the Department of Mathematics Education, Universitas Negeri Yogyakarta, Indonesia since 2003. She earned a M.Ed. and Ph.D in Education from the University of New South Wales, Australia. Besides teaching, she also conducts research and is supervisor of research students. Her research interests are collaborative learning, problem solving, instructional design and teacher professionalism program. She has published in reputable journals such as the Journal of Educational Psychology and Applied Cognitive Psychology. In addition, she is currently an associate editor of the international journal Cakrawala Pendidikan: a journal of education.

Suprapto has been a Lecturer at the Department of Electronics Engineering, Universitas Negeri Yogyakarta, Indonesia since 2005. He received a B.S. degree in 2001, a M.S. degree in 2005, and a Ph.D. degree in 2018 respectively. He published seven papers in international journals and presented at more than seven international conferences for obtaining his Ph.D degree in electrical engineering, National Yunlin University of Science and Technology, Taiwan. His research interests are in the areas of motion-control system, system identification, signal processing, and intelligent systems, including neural network, type-2 fuzzy logic systems, and heuristic algorithms. In 2017, one of his papers received the Best Conference Paper Award on International Conference on Applied System Innovation (IEEE ICASI 2017), Japan. His current research project deals with the intelligent control for batik pattern interpolator using CNC-NURBS. Since 2015, he has become member of the Institute of Electrical and Electronics Engineers (IEEE). His research papers can be accessed at the address: http://www.researcherid.com/rid/F-9452-2017

Mohammad Adam Jerusalem received his bachelor degree (2001), master degree (2009) until doctorate degree (2017) all in Industrial Management. To complete his Ph.D. degree in National Taiwan University of Science and Technology, Taiwan, he published four papers in international journals, indexed by Science Citation Index of Web of Science database and he presented five papers at prestigious international conferences. His research is focused on decision analysis, risk analysis, production management, and enterprise management. Since 2002, he joined the Engineering Faculty of Universitas Negeri Yogyakarta as faculty member.

Kristian Sugiyarto gained his Drs. degree from Universitas Negeri Yogyakarta (UNY), Indonesia in 1978; while appointed to the academic staff of UNY (1978), Kristian undertook M.Sc. program in 1984-1987, and then continued to the Ph.D. program in 1989-1992, both at the Department of Inorganic Chemistry, the School of Chemistry, UNSW, Australia, under the supervision of Prof. H. A. Goodwin. Kristian then undertook a post-doctoral research, again with Prof. H.A. Goodwin, 1995-1997. Several international publications dealing with spin-crossover in iron(II) resulted from the research. Kristian also undertook another six-month research in structural study by EXAFS analysis with Prof. Makoto Kurihara at Shizuoka University and with Prof. Saito, A. at Tokyo Gakugei University, 2002-2003. Recently, Kristian undertook a four-month Academic Recharging Program for doing palladium complex with Prof. Stephen B. Colbran at the School of Chemistry, UNSW, Australia, 2009-2010.

Wagiran has been teaching at the Department of Mechanical Engineering Education, Universitas Negeri Yogyakarta, Indonesia since 2001. He earned his doctoral degree in vocational and technical education in 2010. Besides teaching, he also conducts research and is supervisor of research students. His research interests are teacher competency, teacher education, school efficiency, curriculum for vocational education, and teacher professionalism program. Recently, he gained a role in the Directorate General of Learning and Student Affairs, the Ministry of Research, Technology, and Higher Education, Indonesia, as the curriculum designer and consultant for the national program of teacher education program.