Choosri, N., Pungbunpisan, T., & Polnyotee, M. (2022). Guidelines for Developing Marketing Mix Strategies of Souvenir Products in the Category of Pickled Fish to Promote Tourism of Chaiburi Community Tha Uthen District Nakhon Phanom Province. Research and Development Journal, Loei Rajabhat University, 17(62), 43–51. retrieved from https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/255588