Wongkittiporn, Abhinan. “A Quantitative Study on Noun Clauses in Applied Linguistics Research Articles between Q1 SCOPUS and TCI 1 Databases”. Parichart Journal 37, no. 2 (May 29, 2024): 501–515. accessed April 10, 2025. https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/269095.