Gaya APA
Rohmaniyah,{et.all}, D. et al. (1986).
Management Principle and Functions (Fourth Edition).
United States of America:
Richad D.Irwin,Inc.
Gaya MLA
Rohmaniyah,{et.all}, D. et al..
Management Principle and Functions.
Fourth Edition
United States of America:
Richad D.Irwin,Inc,
1986.
Text.