F. Ferol Warouw, Piet H. Pusung, Viktory N.J.Rotty, AntoinetteL. G. Katuuk, and SonnyD.JMailangkay. “Application of Environmentally Friendly Concepts in the 2020 Elections in North Sulawesi”. Novateur Publications, Dec. 2022, pp. 26-34, http://novateurpublication.org/index.php/np/article/view/8.