I. A. ARSHAD, U. YOUNAS, A. W. SHAIKH, and M. S. CHANDIO. “Quantile Regression Analysis of Monthly Earnings in Pakistan”. Sindh University Research Journal - SURJ (Science Series) 48, no. 4 (December 20, 2016). Accessed July 30, 2026. https://sujo.usindh.edu.pk/index.php/SURJ/article/view/4734.