Team, Support. “Econometric Analysis of Older Workers’ Hours of Work Using A Copula and Sample Selection Approach: A. Wichian, S. Sriboonchitta”. Thai Journal of Mathematics (September 10, 2014): 91–110. Accessed December 22, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/421.