Baco, N., and E. Elihami. “EFFECT OF PROBLEM BASED: LIFE-LONG EDUCATION IN INDUSTRIAL AND DEVELOPING COUNTRIES”. JURNAL EDUKASI NONFORMAL, Vol. 2, no. 1, Mar. 2021, pp. 1-9, https://ummaspul.e-journal.id/JENFOL/article/view/1333.