Damanik, Darwin, and Liharman Saragih. 2018. “ANALISIS WILINGNESS TO PAY WISATAWAN TERHADAP OBYEK WISATA RUMAH BOLON PURBA DI KABUPATEN SIMALUNGUN”. IKRA-ITH HUMANIORA : Jurnal Sosial Dan Humaniora 2 (2), 9-17. https://journals.upi-yai.ac.id/index.php/ikraith-humaniora/article/view/104.