Emoto, Masaru, author
MQ Publishing, 2006
Buku Teks
Emoto, Masaru, author
Beyond Words Pub, 2005
Buku Teks
(hapus1)
Harper One, 2010
Buku Teks
Mortman, Doris
IXY Books, 1996
Buku Teks
Manoppo, Adassa Elisheba, author
2018
UI - Makalah dan Kertas Kerja