Gaya APA
SINGER, F, L. (1981).
Kunci/Jawaban Soal-Soal Kekuatan Bahan (Strength of Material) (3th ed).
Jakarta:
Erlangga.
Gaya MLA
SINGER, Ferdinand, L..
"Kunci/Jawaban Soal-Soal Kekuatan Bahan (Strength of Material)".
3th ed
Jakarta:
Erlangga,
1981.
Printed.