A. Aparicio-Sarmiento, M. T. Martínez-Romero, O. Rodríguez-Ferrán, and P. Sainz de Baranda, “Backpacks habits and back pain in 12 to 18 years old students from Murcia”, RICCAFD, vol. 11, no. 1, pp. 20–32, Mar. 2022.