Zuhar, R. F. “The Relationship of Sleep Duration, Excersise Habits, Physical Activity and Eating Frequency to Nutritional Status of Students of SMAN 22 Surabaya During The Pandemic Covid-19”. Media Gizi Kesmas, vol. 11, no. 2, Nov. 2022, pp. 500-7, doi:10.20473/mgk.v11i2.2022.500-507.