Romyen, L. ., Swasthaisong, sanyasorn, Saenchat, P. ., Muanglen, N. ., Thanaraj, N. . and Sawasthaisong, P. . (2025) “Development of vocational skills and community-based innovation to solve income poverty problems: The case study of Phon Na Kaeo District, Sakon Nakhon Province”, RMUTSB ACADEMIC JOURNAL (HUMANITIES AND SOCIAL SCIENCES). ฺBangkok, Thailand, 10(1), pp. 97–112. available at: https://so05.tci-thaijo.org/index.php/rmutsb-hs/article/view/271309 (accessed: 5 December 2025).