Anim Ofosu, S. ., Okoh Agyemang, E. ., & Wiafe, S. . (2020). The use of a model sand filtration system for greywater treatment: a case study of hotels and hostels in Eastern Region, Ghana. Health, Safety and Environment , 2(8). Retrieved from http://sjournals.com/index.php/hse/article/view/1534