Chinda R, Thongbaion W, Untaweesin A. The Development of Supplementary Exercises for Inferential Statistics of Undergraduates Students in Christian University. rpujournal [internet]. 2023 Dec. 31 [cited 2025 Jan. 21];9(3):165-82. available from: https://so03.tci-thaijo.org/index.php/rpu/article/view/274247