Prananingrum, Ratih, and Reza Dea Asriari. “Analisis Kadar Hemoglobin Dengan Indeks Prestasi Kumulatif (IPK) Mahasiswi”. Prosiding University Research Colloquium, Feb. 2018, pp. 808-14, https://repository.urecol.org/index.php/proceeding/article/view/269.