Putu Radhya Kirana Karmanita, Heidy, Nelson Sudiyono and Mariani Santosa (2025) “The relationship between the degree of low back pain and concentration levels among RICCI Catholic High School Jakarta students during the COVID-19 pandemic”, Indonesian Journal of Biomedicine and Clinical Sciences, 57(2). doi: 10.22146/inajbcs.v57i2.20200.