Junaidi, et al. “Nias Island: Looking at the Life and Health of the Ono Niha in the 19th Century: Looking at the Life and Health of the Ono Niha in 19th Century”.
Medicina Historica, vol. 7, no. 3, Dec. 2023, p. e2023048,
https://mattioli1885journals.com/index.php/MedHistor/article/view/15231.