Hernandez, A. Q., Alcazar, M. Y. C., Diaz, L. E., Cauyan, J. M. L., & Olegario, L. C. (2019). Effects of a nature-based developmental program on second graders' attentiveness and conversational skills. College of Education, University of the Philippines Diliman.

Hernandez, Aileen Quimpo, Marie Yvette C. Alcazar, Leonor E. Diaz, Jaclyn Marie L. Cauyan, and Lizamarie Campoamor Olegario. Effects of a Nature-based Developmental Program on Second Graders' Attentiveness and Conversational Skills. Quezon City: College of Education, University of the Philippines Diliman, 2019.

Hernandez, Aileen Quimpo, et al. Effects of a Nature-based Developmental Program on Second Graders' Attentiveness and Conversational Skills. College of Education, University of the Philippines Diliman, 2019.