Krumbein, W.C.
Appliton, Century Crafts, 1938
Buku Teks
Hutabarat, Sanggam
Universitas Indonesia, 2006
UI - Tesis (Membership)
Andi Ruswandi
Universitas Indonesia, 2001
UI - Tesis (Membership)
Yardley, Bruce W.D.
John Wiley & Sons, 1989
Buku Teks
Berner, Robert A.
McGraw-Hill, 1971
Buku Teks