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Santi, Karina Tri Maya (2024) Hubungan Antara Dukungan Sosial Dan Self Efficacy Dengan Psychological Well Being Pada Lansia Yang Berstatus Janda. (The Relationship Between Social Support and Self-Efficacy with Psychological Well-Being in Elderly Widows). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.