Hanif ML, Bisri K. Quality Management of Education at SMP Negeri 30 Semarang. j. ilm. peningkatan mutu manaj. pendidik. [Internet]. 2026 Jun. 30 [cited 2026 Oct. 1];13(1):159-6. Available from: https://journal.unj.ac.id/unj/index.php/improvement/article/view/64806