Ubaidillah Mughni
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2018
UI - Tesis Membership
Arvin Christian
2018
UI - Skripsi Membership
Alfred
Peachpit press, 1999
Buku Teks
Riama Flora L.M.
Universitas Indonesia, 2003
UI - Skripsi Membership
Dina Sulthoni
Fakultas Teknik Universitas Indonesia, 2015
UI - Skripsi Membership