Lu และผู้แต่งคนอื่นๆ. (2020) A study of teaching quality evaluation system of Thai language major in undergrad level in regular higher educational institutions: Yunnan province as an example. National Institute of Development Administration:ม.ป.ท.Lu และผู้แต่งคนอื่นๆ. 2020. A study of teaching quality evaluation system of Thai language major in undergrad level in regular higher educational institutions: Yunnan province as an example. ม.ป.ท.:National Institute of Development Administration;Lu และผู้แต่งคนอื่นๆ. A study of teaching quality evaluation system of Thai language major in undergrad level in regular higher educational institutions: Yunnan province as an example. ม.ป.ท.:National Institute of Development Administration, 2020. Print.