Sulantari, S., & Hariadi, W. (2022). Analisis Survival Model Regresi Cox Pada Lama Waktu Sembuh Pasien Gejala Sedang Covid-19. UJMC (Unisda Journal of Mathematics and Computer Science), 8(1), 43-54. https://doi.org/https://doi.org/10.52166/ujmc.v8i1.3070