Gulshan Wadhwa, P. Shanmughavel, Atul Kumar Singh, Jayesh R. Bellare, editors
Springer, 2018
Buku Teks
edited by G.F. Chiarotti
North-Holland, 1988
Buku Teks
edited by Braj B. Kachru and Herbert F.W. Stahlke
Linguistic Research, 1972
Buku Teks
Schwirian, Patricia M., author
J.B. Lippincott, 1998
Buku Teks
Doyle, Julia, author
Clanrye International, 2019
Buku Teks