Wameyo, Elvis, Maina Kiambigi, و James Okaka. A Strategy for Effective Safety Management in Construction Sites in Kenya. East African Journal of Engineering 6, no. 1 (ديسمبر 16, 2023): 228-246. تاريخ الوصول مايو 18, 2024. https://journals.eanso.org/index.php/eaje/article/view/1626.