PENGEMBANGAN PERFORMANCE TASK ASSESSMENT SUB DESIGN AN EXPERIMENT UNTUK MENINGKATKAN EFEKTIVITAS PEMBELAJARAN FISIKA DITINJAU DARI KETERAMPILAN PROSES SAINS PESERTA DIDIK DEVELOPMENT OF PERFORMANCE TASK ASSESSMENT SUB DESIGN AN EXPERIMENT TO INCREASE EFFECTIVENESS IN PHYSICS LEARNING PROCESS IN TERMS OF THE STUDENT’S SCIENCE PROCESS SKILLS - Rahma Ghalda Alandia; Suharyanto Suharyanto (Jurnal Pendidikan Fisika, 2017)