Warsito, Teguh. “PRODUCTIVITY AS DETERMINANT FACTOR OF INCOME DISPARITY IN INDONESIA”. Jurnal Ilmiah MEA (Manajemen, Ekonomi, & Akuntansi) 4, no. 3 (October 2, 2020): 938-956. Accessed February 26, 2021. http://journal.stiemb.ac.id/index.php/mea/article/view/525.