edited by M.K. Singh and A. Bhattacharya
S.S. Mubarak & Brother, 1995
Buku Teks
Flynn, Norman, author
Harvester, 1990
Buku Teks
Dooren, Wouter van, author
Routledge, 2015
Buku Teks
edited by Massimo Sargiacomo
McGraw-Hill, 2013
Buku Teks
Summers, Donald B., author
McGrw-Hill , 1981
Buku Teks