Allied Publisher Private Limited, 1965
Buku Teks
Allied Publisher Private Limited, 1965
Buku Teks
Parkin, Raleigh
Green & Company, Canada, 1945
Buku Teks
Guha, Amalendu
People's Publishing House, 1988
Buku Teks
Hardgrave, Robert L., author
Harcourt, Brace, 1970
Buku Teks