Kulharb , N. ., A. Ma-a-lee, and P. . Tongkumchum. “English Under-Five Mortality in Thailand Based on Confidence Intervals from Log Linear Model: Under-Five Mortality in Thailand”. Al-HIKMAH Journal, vol. 11, no. 22, Dec. 2021, pp. 249-5, https://so01.tci-thaijo.org/index.php/HIKMAH/article/view/248473.