Rattana Chanthao. “ENVIRONMENTAL CONTENTS IN LAO LANGUAGE TEXTBOOKS OF ELEMENTARY SCHOOL”. PalArch’s Journal of Archaeology of Egypt / Egyptology 17, no. 9 (November 3, 2020): 633 - 644. Accessed May 15, 2025. https://www.archives.palarch.nl/index.php/jae/article/view/3490.