Effect of Star Board Rewards on Learning Motivation of 4-5 Year-Old Children: A Quantitative Experimental Study: Pengaruh Reward Papan Bintang terhadap Motivasi Belajar Anak Usia 4-5 Tahun: Sebuah Studi Eksperimen Kuantitatif. (2023). Indonesian Journal of Education Methods Development, 18(3). https://doi.org/10.21070/ijemd.v21i4.775