Purba EF, Lastri. IMPLIKASI EKONOMI ULOS HOLONG BAGI PENGANTIN BATAK TOBA: PENDEKATAN UTILITAS DAN BIAYA OPORTUNIS. JMB [Internet]. 2022 Feb. 26 [cited 2026 Sep. 3];22(1):226-39. Available from: https://ejournal.ust.ac.id/JIMB_ekonomi/article/view/1742