Mostahsan, Zahra Ehsanbakhsh, and Seyedeh Somaiye Mirzaee. “LABOR PRODUCTIVITY (SAGACITY IN PRODUCTION & CONSUMPTION)”. Singaporean Journal of Business Economics and Management 1, no. (6) (June 30, 2013): 9–16. Accessed April 18, 2026. https://singaporeanjbem.com/index.php/SJBEM/article/view/43.