Erhun, W. O. (2019). A tree model for managing medicine use and supply. Obafemi Awolowo University Press Limited.
Chicago-čujuhus (17. p.)Erhun, Wilson Oyekigho. A Tree Model for Managing Medicine Use and Supply. Obafemi Awolowo University Press Limited, 2019.
MLA-čujuhus (9. p.)Erhun, Wilson Oyekigho. A Tree Model for Managing Medicine Use and Supply. Obafemi Awolowo University Press Limited, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.