Sithipong, S. and Koontragool, B. (2024) “Local gravity measurement by using the minimized period of rod pendulums”, NKRAFA JOURNAL OF SCIENCE AND TECHNOLOGY, 20(2), pp. 44–45. available at: https://ph02.tci-thaijo.org/index.php/nkrafa-sct/article/view/252331 (accessed: 14 September 2026).