Zaini, Z. H., and M. Mansor. “Persepsi Guru Prasekolah Kebangsaan Terhadap Program Pembangunan Profesional Guru: National Preschool teacher’s Perception towards Professional Development Program”. Southeast Asia Early Childhood Journal, vol. 8, no. 1, June 2019, pp. 30-36, doi:10.37134/saecj.vol8.no1.4.2019.