Kartika Sugih Ningsih, author
Universitas Indonesia, 2018
UI - Skripsi (Membership)
Larsen, Randy J., author
McGraw-Hill, 2005
Buku Teks
Fromm, Erich, author
LP3ES, 1987
Buku Teks
Covey, Stephen R., author
Bina Rupa Aksara, 1997
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2018
Buku Teks