Metodologi Penelitian Keperawatan Metodologi Penelitian Keperawatan Metodologi Penelitian Keperawatan V. Wiratna Sujarweni V. Wiratna Sujarweni V. Wiratna Sujarweni text Yogyakarta : Gava Media, Yogyakarta : Gava Media, Yogyakarta : Gava Media, 2014 2014 2014 URN:ISBN:9786027869349 URN:ISBN:9786027869349 URN:ISBN:9786027869349