Gaya APA
Telford,W.M, ., Geldart,L.P, S. (1990).
Applied Geophysics Second Edition .
New York:
Camcridge University press.
Gaya MLA
Telford,W.M, ., Geldart,L.P, Sheriff,R.E.
"Applied Geophysics Second Edition".
New York:
Camcridge University press,
1990.
Textbook.