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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Avestros, Viola S., Leonore E. Diaz, Marie Yvette C. Alcazar, Ana Maria Margarita S. Salvador, و 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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)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.