Blessy Mae L. Lopez, Janella Angelica R. Navarro, Regan L. Regua, Rhodelyn T. Samulde, and Mark Angelo C. Reotutar. “Development and Validation of a Triangle Trigonometry E-Module”. The Asian Journal of Education and Human Development (AJEHD), vol. 5, no. 1, Dec. 2024, doi:10.69566/ajehd.v5i1.103.