Ejere, HO; Alhassan, MB; Rabiu, M (Apr 18, 2012). "Face washing promotion for preventing active trachoma.". The Cochrane database of systematic reviews4: CD003659. doi:10.1002/14651858.CD003659.pub3. பப்மெட்:22513915.
Ejere, HO; Alhassan, MB; Rabiu, M (Apr 18, 2012). "Face washing promotion for preventing active trachoma.". The Cochrane database of systematic reviews4: CD003659. doi:10.1002/14651858.CD003659.pub3. பப்மெட்:22513915.