Nugraheni, Sri Wahyuningsih, and Yarnisa Oktavia Muchtaru. 2018. “Analisis Trend Statistik Kematian Di Rumah Sakit PKU Muhammadiyah Surakarta”. Prosiding University Research Colloquium, February, 742-54. https://repository.urecol.org/index.php/proceeding/article/view/260.