Reskiani, R. and Supriadi, S. (2020) “Implementation of Advance Organizer Learning Model Based on Numbered Heads Together (NHT) to Improve Learning Outcomes of Students in 11th Grade Science on Buffer at SMAN 2 Balaesang”, Jurnal Akademika Kimia. Palu, Sulawesi Tengah - INDONESIA, 9(3), pp. 176–182. doi: 10.22487/j24775185.2020.v9.i3.pp176-182.