Nathasya, Jessie Angeline, Septa Ria Agina Perangin Angin, Fariani Syahrul, and Ratna Dwi Wulandari. 2023. “Comorbid Diseases and History of Close Contact Factors of Covid-19 Incidence in South Surabaya”. Media Gizi Kesmas 12 (2):779-84. https://doi.org/10.20473/mgk.v12i2.2023.779-784.