Coloma, W. C. I., & Cabbab, J. F. A. (2019). Annotated index of Tula Dula scripts from 1977-2017. School of Library and Information Studies, University of the Philippines Diliman.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Coloma, Wynonah Charise I., و Johann Frederick A. Cabbab. Annotated Index of Tula Dula Scripts from 1977-2017. Quezon City: School of Library and Information Studies, University of the Philippines Diliman, 2019.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Coloma, Wynonah Charise I., و Johann Frederick A. Cabbab. Annotated Index of Tula Dula Scripts from 1977-2017. School of Library and Information Studies, University of the Philippines Diliman, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.