TY - UNPB UR - https://repository.itny.ac.id/id/eprint/3394/ ID - ITNYREPOID3394 AV - public A1 - Retno Astuti, Listiyani PB - ITNY TI - Peer review: Stable Isotopes Changes In Groundwater Case Study In Mudal And Clapar Springs, West Progo ER -