International Standard Organisation (ISO) : keberkesanan memenuhi kehendak pelanggan ; satu kajian kes di Institut Tadbiran Awam Negara (INTAN) / oleh Maimunah Osman.
Internet
http://studentsrepo.um.edu.my/559/http://studentsrepo.um.edu.my/559/1/PEND.pdf
http://studentsrepo.um.edu.my/559/2/BAB1.pdf
http://studentsrepo.um.edu.my/559/3/BAB2.pdf
http://studentsrepo.um.edu.my/559/4/BAB3.pdf
http://studentsrepo.um.edu.my/559/5/BAB4.pdf
http://studentsrepo.um.edu.my/559/6/BAB5.pdf
http://studentsrepo.um.edu.my/559/7/BAB6.pdf
http://studentsrepo.um.edu.my/559/8/BIBLIO.pdf
http://studentsrepo.um.edu.my/559/9/LAMPIRAN.pdf