Gaya APA
Littlefield,C.L., . et al (1971).
Office and Administrative Management (Edisi 3).
New Delhi:
Prentice-Hall of India Private Limited.
Gaya MLA
Littlefield,C.L., . et al.
"Office and Administrative Management".
Edisi 3
New Delhi:
Prentice-Hall of India Private Limited,
1971.
Texts.