1. Peta daerah bahaya gunungapi Ijen, Jawa timur = volcanic hazard map of Ijen Volcano, east Java Yale Public content 1993. 2007-07-18T20:24:44Z. 2016-07-27T21:14:48Z. Direktorat Vulkanologi. Indonesian&English. cartographic image. Public. Indonesia, Java, and Java.