Patimah, S., Slameto, S. and Setyaningtyas, E.W. 2018. Student teams achievement divisions (STAD) to enhance learning outcome. Jurnal Pendidikan dan Pengajaran. 51, 2 (Aug. 2018), 81–85. DOI:https://doi.org/10.23887/jpp.v51i2.15416.