KA Uwakwe, AP Agu, LU Ogbonnaya, EU Nwonwu, EN Aguwa, & CB Duru. (2015). Perception and attitude towards work related ill-health and use of dust mask among crushers of selected quarry (crushed stone) industry in Ebonyi State: effect of health education. Journal of Community Medicine & Primary Health Care, 27(2), 93–103. Retrieved from https://jcmphc.org/index.php/jcmphc/article/view/150