Kongpanna W, Seerasarn N, Keowan B. Factors Affecting Farmer’s Extension Needs of Maize Production for Farmers in Nakhonthai District, Phitsanulok Province. LRUJ [internet]. 2025 Apr. 2 [cited 2025 Apr. 26];20(71):78-86. available from: https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/275673