Kumansing, Santiphong, Chanthai จันไทย, and Krongten กรงเต้น. 2023. “Assisting Citizens During Investigations Case Study in Thung Salaeng Luang National Park Phetchabun Province”. Journal of Humanities and Social Sciences Uttaradit Rajabhat University 10 (2):152-67. https://so04.tci-thaijo.org/index.php/johuru/article/view/269704.