Ernita Daulay, Khairina Nasution, Akmal, and Karisma Erikson Tarigan. “Lexicons of Flora and Fauna in Upah-Upah Ceremony at Mandailing Tribe Wedding in Matondang Village Padang Lawas Regency: An Ecolinguistic Perspective”. British Journal of Biology Studies, vol. 1, no. 1, Nov. 2021, https://al-kindipublisher.com/index.php/bjbs/article/view/2372.