Hamdani, Fathrial Muhamad, et al. “DESIGN OF DATA WAREHOUSE ARCHITECTURE FOR TRACER STUDY DATA MANAGEMENT BASED ON OLAP”. CENTRAL ASIA AND THE CAUCASUS, vol. 23, no. 1, Jan. 2022, pp. 3158-71, https://ca-c.org/CAC/index.php/cac/article/view/277.