Sada, Mariana, and Jumari Jumari. “Ethnobotany of the Plant in Ceremonies of Ngadha Ethnic Jerebu’u Sub District, Ngada District, Nusa Tenggara Timur Province”. Jurnal Saintek Lahan Kering 1, no. 2 (December 23, 2018): 19-21. Accessed September 22, 2019. http://savana-cendana.id/index.php/SLK/article/view/503.