Almaidah, A., Abram, P. H. and Diah, A. W. M. (2019) “The Implementation of Problem Based Learning (PBL) Model toward Students’ Learning Outcomes in the Class XI IPA on Colloid Material at SMA Negeri 9 Palu”, Jurnal Akademika Kimia. Palu, Sulawesi Tengah - INDONESIA, 8(4), pp. 197–203. doi: 10.22487/j24775185.2019.v8.i4.pp197-203.