Harahap, Basyral Hamidy. <br/><br/>
Orientasi nilai-nilai budaya batak :  suatu pendekatan terhadap perilaku B tak Toba dan Angkola Mandailing / 
Basyral Hamidy Harahap Hotman M. Siahaan. 
 - Jakarta :  Sanggar Willem Iskander,  1987. 
 - xiii, 341 pages :  illustration ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Batak--Social life and customs<br/>Toba--Batak (Indonesian people)--Social life and customs<br/>Mandailing--social life and customs