C. J. . M. Valdez, P. L. . G. Cardenas, A. Y. . Aurelio, M. A. . G. Adisas, and L. Villanueva, “Authentic Text-Based Activities to Enhance Students’ Ability in Using Perfect Verb Tenses”, ETERNAL, vol. 9, no. 02, pp. 326–345, Dec. 2023.