• Ang Dila Natong Bisaya [Our Visayan Language], by Manuel Yap. With Imprimatur dated 1947. Available at Internet Archive, which states: “A grammar book on the Cebuano language written in Cebuano by a native speaker. Cebuano is the main language of the Philippines. Published in 1949 in the Philippines. The author was a Catholic Bishop. This book is recommended by the English-Cebuano dictionary by Cabonce that is sold in the Philippines.”

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