Narakorn Rompurk Kanasri และ Patiwat Singthongla. (2018) Characterizations of rational numbers by SEL seriesand alternating SEL series expansions. <i>Songklanakarin Journal of Science and Technology</i>, <i>40</i>(4), 743.Narakorn Rompurk Kanasri และ Patiwat Singthongla. "Characterizations of rational numbers by SEL seriesand alternating SEL series expansions". Songklanakarin Journal of Science and Technology 40 (2018):743.Narakorn Rompurk Kanasri และ Patiwat Singthongla. Characterizations of rational numbers by SEL seriesand alternating SEL series expansions. Research and Development Office, Prince of Songkla University:ม.ป.ท. 2018.