Istiani, R., Azrai, E. P., & Rustam, Y. (2018). Effect of Application of Team Assisted Individualization of Biology Learning Model Of Student Interest in the Pteridophyta Material at SMAN 39 Jakarta. Biosfer: Jurnal Pendidikan Biologi, 7(1), 37-42. https://doi.org/10.21009/biosferjpb.7-1.6