Kamala, A.
Tata McGraw-Hill, 1994
Buku Teks SO
Elseiver, 1997
Buku Teks
Sibarani, Marimbun
Fakultas Teknik Universitas Indonesia, 2008
UI - Skripsi Open
Davenport, S.J.
Washington, DC: United States Department of the Interior, 1954
Buku Teks
Mansur Samin
Dewan Kesenian Djakarta, 1969
Buku Teks SO