Piyanat Soikham และ Sirisup Sihawong. (2023) Knowledge and Attitude of India in Ubon Ratchathani University Staff. <i>Journal of Humanities and Social Sciences Mahasarakham University</i>, <i>42</i>(4), no. 507-517.Piyanat Soikham และ Sirisup Sihawong. "Knowledge and Attitude of India in Ubon Ratchathani University Staff". Journal of Humanities and Social Sciences Mahasarakham University 42 (2023):no. 507-517.Piyanat Soikham และ Sirisup Sihawong. Knowledge and Attitude of India in Ubon Ratchathani University Staff. Mahasarakham University:ม.ป.ท. 2023.