Isnaini, F., and M. I. Kurniawan. “The Concept of STAD (Student Team Achievement Division) Cooperative Learning Model According to Robert E. Slavin: Konsep Model Pembelajaran Kooperatif STAD (Student Team Achivement Devision) Menurut Robert E. Slavin”. Indonesian Journal of Education Methods Development, Vol. 10, May 2020, p. 10.21070/ijemd.v10i.561, doi:10.21070/ijemd.v10i.561.