Gaya APA
Gibson, J, L, I, J, M., Donnelly, J, H. (1987).
Fundamentals of Manajement .
Illionis:
Business Publications, Inc.
Gaya MLA
Gibson, James, L.;, Ivancevich,, John, M.., Donnelly, James, H.
"Fundamentals of Manajement".
Illionis:
Business Publications, Inc,
1987.
Buku.