Najmiah, Najmiah, et al. “The Effectiveness of Probing Techniques in Learning Biology on Learning Outcomes and Perceptions in Class IX Students of SMP Negeri 2 Sengkang, Wajo Regency”. International Journal of Health, Economics, and Social Sciences (IJHESS), vol. 2, no. 3, July 2020, pp. 140-8, doi:10.56338/ijhess.v2i3.1263.