Puji, Chintya, and Aram Hakobyan. “The Impact of Open-Ended Learning on 21st-Century Skill Acquisition in Early Learners”. Journal of Early Childhood Education and Teaching (JECET) 1, no. 2 (June 30, 2025): 90–100. Accessed August 23, 2025. https://journal.bestscholar.id/jecet/article/view/42.