Ritthong ป., Rattanapan ก. ., Jitpukdee ส. . and Muneenam อ. . (2021) “Development of Ability in Natural Resources and Environmental Protection Volunteers in Phatthalung Province”, Journal of Vocational Institute of Agriculture, 5(1), pp. 49–60. Available at: https://li01.tci-thaijo.org/index.php/JVIA/article/view/249328 (Accessed: 25 May 2022).