Wongkittiporn, Abhinan. “Semantic Denotations of Non-Restrictive Relative Clauses in English Clinical Anatomy Textbooks”. Liberal Arts Review 16, no. 2 (November 24, 2021): 39–62. Accessed May 8, 2024. https://so04.tci-thaijo.org/index.php/larhcu/article/view/251882.