Armiaty, and Muammar Khadafie. “Innovative Model of Tiered Early Childhood Education (ECE) Training: A Case Study of the West Sumbawa Regency Education and Culture Office”. Golden Ratio of Social Science and Education, vol. 5, no. 2, Oct. 2025, pp. 569-87, doi:10.52970/grsse.v5i2.1629.