Hanani Faiza
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi Membership
Macy, Beverly
McGraw-Hill, 2011
Buku Teks
Hartley, Darin
American Society for Training & Development, 2010
eBooks
Nuriyah Syakiela
2018
UI - Skripsi Membership
Finadya Rienetta
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Skripsi Membership