ASM International
ASM International, 1992
Buku Referensi
edited by J.R. Davis & Associates
ASM International, 1992
Buku Referensi
The Academy of Sciences Malaysia, 2007
Majalah, Jurnal, Buletin
Ratna Merika Dani, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1983
UI - Skripsi Membership
Endang Priyanti Noegrahaeni, author
1989
UI - Skripsi Membership