Gasing, Mae-Ann, and Mohammad Ali Al-Saggaf. “An Archival Study on the Linguistic State of Obo Manobo and Kinamiging Manobo”. Southeastern Philippines Journal of Research and Development 30, no. 2 (September 30, 2025): 165–183. Accessed November 2, 2025. https://journal.usep.edu.ph/index.php/Southeastern_Philippines_Journal/article/view/1041.