Orientasi nilai-nilai budaya batak : suatu pendekatan terhadap perilaku B tak Toba dan Angkola Mandailing - Harahap, Basyral Hamidy; Siahaan, Hotman M. (Jakarta : Sanggar Willem Iskander, 1987)
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Keywords: Batak -- Social life and customs; Toba -- Batak (Indonesian people) -- Social life and customs; Mandailing -- social life and customs