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Purnomo, Rafliansyah Ikhwan Muharram (2023) Hubungan Konsep Diri dengan Perilaku Asertif pada mahasiswa psikologi Universitas 17 Agustus 1945 Surabaya. (The Relationship between Self-Concept and Assertive Behavior in Psychology Students August 17 1945 University of Surabaya). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.