Susanto, Joko. “LABOR PRODUCTIVITY, NUMBER OF MOTOR VEHICLE AND INCOME CONVERGENCE”. Jurnal Litbang Sukowati : Media Penelitian dan Pengembangan 4, no. 1 (October 16, 2020): 101–111. Accessed February 23, 2025. https://journal.sragenkab.go.id/index.php/sukowati/article/view/181.