Puspita, A. D., M. Dimyati, and R. Rachmawati. “The Application of CAPM As A Basis For Determining The Return Level, Risk To Determine The Efficient Stock Group On Companies Listed On Indonesia Stock Exchange”. ABM: International Journal of Administration, Business and Management, Vol. 1, no. 1, Nov. 2020, pp. 61-73, doi:10.31967/abm.v1i1.385.