Hidalgo, Cesar. “AMERICAN LINGUISTIC STUDIES IN MINDANAO AND SULU, 1899-1946”. Mindanao Journal 8, no. 1,2,3,4 (May 17, 2026): 177–192. Accessed June 19, 2026. https://msu-mindanaojournal.com/index.php/ojs/article/view/503.