Putri Purwati N, Holiso N, Indah Sukmah N, Trihantoyo S, Nubhanudin N. Implementasi kebijakan sistem zonasi PPDB di SMPN 59 surabaya. JPION [Internet]. 2024 Mar. 31 [cited 2026 May 11];3(1):162-8. Available from: https://jpion.org/index.php/jpi/article/view/247