Geomorphology of the small island of Tidore and Hiri (North Maluku, Indonesia) Bachtiar W Mutaqin, Muh Aris Marfai, Danang Sri Hadmoko, Franck Lavigne, Audrey Faral, Helvetia Wijayanti and Widiyana Riasasi E3S Web Conf., 325 (2021) 03012 Published online: 17 November 2021 DOI: 10.1051/e3sconf/202132503012