Syahdumawarta, Lirana Imute, et al. “Larvicidal Activity of Zingiber Purpureum Roscoe Essential Oil from East Kalimantan in Preventing Dengue Hemorrhagic Fever: Efficacy Test of Zingiber Purpureum Roscoe Essential Oil As a Natural Larvicide ”. International Journal of Multidisciplinary: Applied Business and Education Research, vol. 5, no. 9, Sept. 2024, pp. 3609-14, https://doi.org/10.11594/ijmaber.05.09.20.