NISAK, Siti Choirotun. Pembentukan Keterampilan Leadership Skill Melalui Organisasi Siswa Intra Sekolah (OSIS) di Madrasah Tsanawiyah Nahdlatul ‘Ulama Mojosari-Loceret-Nganjuk. Intelektual: Jurnal Pendidikan dan Studi Keislaman, [S. l.], v. 8, n. 3, p. 399–412, 2018. DOI: 10.33367/intelektual.v8i3.732. Disponível em: https://ejournal.uit-lirboyo.ac.id/index.php/intelektual/article/view/732. Acesso em: 14 jan. 2026.