Irene Sukma Lestari Barus. 2021. “‘The Effect Of Profitability On Dividend Payment Through Income Smoothing As Moderator (Survey On Pharmaceutical Companies Registered In Indonesia Stock Exchanges in Period of 2015-2019)’”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12 (8):917-26. https://www.turcomat.org/index.php/turkbilmat/article/view/2953.