Barus, M., Rupang, E. R., & Lahagu, E. J. P. (2023). Position relationship and long sitting with complaints of low back pain during studies online at level II students ners study program at STIKes Santa Elisabeth Medan in 2022. International Journal on Health and Medical Sciences, 2(1), 23–28. https://doi.org/10.35335/healmed.v2i1.182