Samad, Farida, Rita Samad, and Sasmayunita Sasmayunita. “Higher Order Thinking Skills of Children Aged 4-6 Years in Early Language Learning Based on Lesson Study”. Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran 7, no. 4 (December 11, 2021): 876–885. Accessed August 16, 2025. https://e-journal3.undikma.ac.id/index.php/jurnalkependidikan/article/view/4368.