พรหมมาพันธุ์ บ. (2018) “Techniques for Data Interpreting for Using Correlation and Regression in Research”, STOU Education Journal, 11(1), pp. 32–45. available at: https://so05.tci-thaijo.org/index.php/edjour_stou/article/view/131213 (accessed: 15 September 2026).