E., Esien-Umo; P., Mallam S.; C., Akpa T.; V., Ukpong E. X-RAY BARRIER ESTIMATION - A CASE STUDY OF THE GENERAL RADIOGRAPHY ROOM OF A MAJOR NIGERIAN TEACHING HOSPITAL. Journal of Radiography and Radiation Sciences, [S. l.], v. 27, n. 1, p. 16–24, 2026. DOI: 10.82547/jrrs.vol27no1.112. Disponível em: https://jrrs.org.ng/index.php/home/article/view/112. Acesso em: 23 feb. 2026.