Avestros, V. S., Diaz, L. E., Alcazar, M. Y. C., Salvador, A. M. M. S., & Alipustain, E. H. G. (2019). Kindergarten teachers' perception and practice of play-oriented instruction: Implications for teachers development. College of Education, University of the Philippines Diliman.

Avestros, Viola S., Leonore E. Diaz, Marie Yvette C. Alcazar, Ana Maria Margarita S. Salvador, and Eva Haydee G. Alipustain. Kindergarten Teachers' Perception and Practice of Play-oriented Instruction: Implications for Teachers Development. Quezon City: College of Education, University of the Philippines Diliman, 2019.

Avestros, Viola S., et al. Kindergarten Teachers' Perception and Practice of Play-oriented Instruction: Implications for Teachers Development. College of Education, University of the Philippines Diliman, 2019.