Koprasert K, Patthirasinsiri N, Ngamyingyong N, Kongka J. Development of Electronic Pocket Book “ Business Tips Bettas Fish millionaire By Using OMNI Channel Marketing Strategy”. J Vongchavalitkul U [internet]. 2020 Aug. 14 [cited 2026 Aug. 28];33(1):58-69. available from: https://ph01.tci-thaijo.org/index.php/vujournal/article/view/240274