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<xml><bibliography><APA>Poonchayar Patthanangkoor และ Sutasinee Wannusit. (2019) On Inverse Semipolygroups. &lt;i&gt;Thai Journal of Science and Technology&lt;/i&gt;, &lt;i&gt;8&lt;/i&gt;(4), 324-333.</APA><Chicago>Poonchayar Patthanangkoor และ Sutasinee Wannusit. "On Inverse Semipolygroups". Thai Journal of Science and Technology  8 (2019):324-333.</Chicago><MLA>Poonchayar Patthanangkoor และ Sutasinee Wannusit. On Inverse Semipolygroups. Thammasat University:ม.ป.ท. 2019.</MLA></bibliography></xml>
