Saima Shihepo, Roswitha Mahalie and Omotayo Awofolu. The Implementation of the Hierarchical Hazard Control Model to Assess the Respiratory Protection of Quarry and Allied Workers in Namibia. GESERH-V9 [Internet]. 2025 Apr. 4 [cited 2026 Jun. 13];:200-18. Available from: https://stm.bookpi.org/GESERH-V9/article/view/17879