Siswanto
Operations research Jilid I
Erlangga, 2007
 Buku Teks SO
Sutrisno Hadi
Metodologi research untuk penulisan paper, skripsi, thesis dan disertasi Jilid 1
Yayasan penerbitan Fakultas psikologi UGM , 1978
 Buku Teks
Estolas, Josefina V.
Fundamentas of research
Miranda, 1973
 Buku Teks SO
Fowler, Floyd J.
Survey research methods
Sage, 2002
 Buku Teks SO
Research methods: guidance for postgraduates
edited by Tony Greenfield
Arnold, 1996
 Buku Teks SO