Rumahlatu, D., K. Sangur, and S. Liline. “Complex Instruction Team Product (CITP) Learning Model: Improving student’s Scientific Attitudes and Learning Outcomes”. JPBI (Jurnal Pendidikan Biologi Indonesia), vol. 5, no. 2, June 2019, pp. 207-16, doi:10.22219/jpbi.v5i2.8367.