Yanapat Tongron และ Narakorn Rompurk Kanasri. (2022) A simple proof of generalizations of number-theoretic sums. <i>Songklanakarin Journal of Science an Technology (SJST)</i>, <i>44</i>(2), 450-458.Yanapat Tongron และ Narakorn Rompurk Kanasri. "A simple proof of generalizations of number-theoretic sums". Songklanakarin Journal of Science an Technology (SJST) 44 (2022):450-458.Yanapat Tongron และ Narakorn Rompurk Kanasri. A simple proof of generalizations of number-theoretic sums. Research and Development Office, Prince of Songkla University:ม.ป.ท. 2022.