Sumarni, Neni, Enjang Suherman, Suroso, and Ade Mubarok. “STRATEGI PENGUATAN PEMASARAN BERBASIS DELTA MODEL PADA SMP ISLAM KARAWANG”. Service Management Triangle: Jurnal Manajemen Jasa 4, no. 1 (May 25, 2022): 1-8. Accessed April 20, 2026. https://ars3.namadomainanda.my.id/index.php/jsj/article/view/727.