[1]
R. Reskiani and S. Supriadi, “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”, J. Akademika Kimia, vol. 9, no. 3, pp. 176–182, Aug. 2020.