Jacob, Herbert, 1933-, author
Yale University Press, 1963
Buku Teks
Legge, John D., author
Cornell Univiversity Press , 1961
Buku Teks
Jurgen Georg Backhaus, editor
Springer, 2012
eBooks
Artikel Jurnal
Avasthi, A., author
New Delhi, Tata McGraw-Hill
Buku Teks