Sugiharti, Rr, Fitrah Islami, and Octavia Pramudiastuti. “Is Educated Labor Really Productive?”. Economics Development Analysis Journal 10, no. 1 (February 9, 2021): 43-53. Accessed April 22, 2021. https://journal.unnes.ac.id/sju/index.php/edaj/article/view/42530.