Gaya APA
Littlefield, C.L. (1990).
Management of office operations .
New Delhi:
Prentice Hall of India.
Gaya Chicago
Littlefield, C.L.
Management of office operations.
New Delhi:
Prentice Hall of India,
1990.
Buku.
Gaya MLA
Littlefield, C.L.
Management of office operations.
New Delhi:
Prentice Hall of India,
1990.
Buku.
Gaya Turabian
Littlefield, C.L.
Management of office operations.
New Delhi:
Prentice Hall of India,
1990.
Buku.