Gaya APA
Moyer, R, E., Frank, A, J. (1999).
Schaum's Outline of Trigonometry (Third edition).
Singapore:
McGraw Hill.
Gaya MLA
Moyer, Robert, E.., Frank, Ayres, JR..
"Schaum's Outline of Trigonometry".
Third edition
Singapore:
McGraw Hill,
1999.
Text.