Binmudnee, Pratya, Sorat Abdulsata, Ibtizam Hama, Rokiyoh Maduereh, and Suinee Takaeh. 2021. “The Development of the English Vocabulary Application on Android Operating System for Upper – Primary Students in Five Southern Border Provinces”. Interdisciplinary Research Review 16 (3):8-13. https://ph02.tci-thaijo.org/index.php/jtir/article/view/242523.