INDRASWARI, Dini Ayu; IRTADJI, Moh.; DWIASTUTI, Ike. Efektifitas Assertiveness Training untuk Siswa Sekolah Menengah Pertama (SMP). Jurnal Ilmu Perilaku, [S.l.], v. 1, n. 2, p. 81-97, feb. 2018. ISSN 2581-0421. Available at: <http://jip.fk.unand.ac.id/index.php/jip/article/view/30>. Date accessed: 08 aug. 2022. doi: https://doi.org/10.25077/jip.1.2.81-97.2017.