Purbiyanto, Eko, Purwanto Purwanto, and Retno Wahyuningsih. 2023. “Evaluating Parent Satisfaction: The Impact of Educational Service Quality at an Islamic Kindergarten in Colomadu, Karanganyar, Central Java”. AL-ISHLAH: Jurnal Pendidikan 15 (4):6172-81. https://doi.org/10.35445/alishlah.v15i4.4663.