9 1 10 Ratna Hapsari Primary Author M Adil Additional Author Rikard Rahmat Editor mixed material 9786232666818 Jakarta Erlangga 2021 ditinjau dari Ilmu Keperawatan Ratna, Wahyu Primary Author mixed material 9789791965309 Yogyakarta Pustaka Rihama 2010 Petunjuk Praktis Pemasangan Alat Kontrasepsi Hidayati, Ratna Primary Author mixed material 9786028570213 Jakarta Salemba Medika 2009 Sejarah Pendidikan di Yogyakarta Nurhajarini, Dwi Ratna Primary Author Amini, Mutiah Additional Author Kurniawati, Asti Additional Author Wirawan, Yerry Additional Author Baha'udin Additional Author mixed material 9786025086373 Yogyakarta Dinas Kebudayaan DIY 2017 Ratna Primary Author mixed material 55476646442 Jakarta Bhuana Sastra 2017 Ratna Kumala Primary Author mixed material Surabaya Cipta larau 2015 Kumala ratna Primary Author mixed material 9799785509 Surabaya Cipt karya 2013 Ratna, Qori Additional Author mixed material 9786027731660 Klaten Cable Book 2014 Nursanti, Ratna Primary Author mixed material 979731670X Yogyakarta Andi 2005