Samad, F. et al. 2022. Lesson Study as Professional Development of Early Childhood Educators. Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran. 8, 2 (Jun. 2022), 428–436. DOI:https://doi.org/10.33394/jk.v8i2.5139.