Hidayati, E. R. N., Suharti, A., Suratinoyo, A. T., Zahra, S. R., & Nusdwinuringtyas, N. (2021). Feasibility of the modified 30-second sit-to-stand test in an isolation ward of moderate COVID-19. Medical Journal of Indonesia, 30(4), 306-10. https://doi.org/10.13181/mji.bc.215477