Rachmat, M. “APPLYING DISCOVERY LEARNING ON ELASTICITY MATERIAL CONCEPTS TO IMPROVE PHYSICS LEARNING OUTCOMES FOR STUDENTS IN GRADE XI-5 SCIENCE PROGRAM IN CIBINONG 3 HIGH SCHOOL”. Wahana Journal of Action Research, Vol. 2, no. 3, July 2020, pp. 01-09, http://jurnal.sman1parung.sch.id/index.php/jar/article/view/14.