Gaya APA
Element Of Trigonometry. (1971).
Amerika:
D.C. Heath and Company.
Gaya Chicago
Element Of Trigonometry.
.
Amerika:
D.C. Heath and Company,
1971.
.
Gaya MLA
Element Of Trigonometry.
.
Amerika:
D.C. Heath and Company,
1971.
.
Gaya Turabian
Element Of Trigonometry.
Amerika:
D.C. Heath and Company,
1971.
.