Tetty, Charles (1985). «Medical Practitioners of African Descent in Colonial Ghana». The International Journal of African Historical Studies18 (1): 139-144. PMID11617203. doi:10.2307/217977.
Tetty, Charles (1985). «Medical Practitioners of African Descent in Colonial Ghana». The International Journal of African Historical Studies18 (1): 139-144. PMID11617203. doi:10.2307/217977.