Fromm, Erich
The art of loving
Harper Collins, 2000
 Buku Teks
Berton, Pierre
The wild frontier : more tales from the remarkable past / by Pierre Berton
McClelland and Stewart, 1978
 Buku Teks
The internet strategy handbook : lessons from the new frontier of business
edited by Mary J. Cronin
Harvard Business School Press , 1996
 Buku Teks
Carlson, Richard, 1961-
Don't sweat guide for couples : kiat menjadikan hubungan asmara lebih hangat, penuh cinta, dan bebas stres=The don't sweat guide for couples : ways to be intimate, loving and stress-free in your relationship
Gramedia Pustaka Utama , 2005
 Buku Teks
Fromm, Erich
Seni mencinta = The Art of loving
Pustaka Sinar Harapan, 1990
 Buku Teks