Gaya APA
Fryar, M., Thomas, D. (1983).
Successful Problem Solving: a Practical Guide For the Student and Professional (Cet. 1.--).
USA:
National Textook Company.
Gaya MLA
Fryar, Maridell., Thomas, David.
"Successful Problem Solving: a Practical Guide For the Student and Professional".
Cet. 1.--
USA:
National Textook Company,
1983.
Text.