A widely referenced research methodology textbook by Prof. Dr. Sugiyono covering comprehensive approaches to educational research, including quantitative, qualitative, and Research and Development (R&D) frameworks, along with instrument design and data analysis techniques.
Authored by educational scholar Prof. Dr. Mohammad Ali, M.A., this comprehensive textbook addresses research methodology specifically tailored to educational discipline and practice. The text explores quantitative, qualitative, and mixed-methods research approaches, covering core research design elements such as problem formulation, hypothesis development, sampling methods, data collection inst…