jittpakdee, Wilairat, Boonlue Chaimano, and Sanom Krutmuang. 2020. “Basic Words comparison between Thai Language and Lao language for Grade level I: Study on Types of Word, Concrete Nouns, Abstract Nouns and Difficulty of Words”. Dhammathas Academic Journal 20 (1):21-32. https://so06.tci-thaijo.org/index.php/dhammathas/article/view/221009.