PENULIAR, A. J. M.; GUINTO, V. M. R.; OCLAY, A. D.; SORIANO, P. C. A. V.; SISON, M. M.; CAMARA, PHD, J. S.; RETUYA, J. R. T.; BERNARDO, J. V. Offline or Online?: How Should Biology Be Taught in a Flexible Learning Modality in the Philippines. Southeast Asian Journal of Science and Technology, v. 6, n. 1, p. 30-38, 23 Oct. 2021.