Spear, Percival, author
The University of Michigan Press, 1961
Buku Teks
Shahabe Abullais Saquib, author
Journal of Dentistry Indonesia, 2018
Artikel Jurnal
Languages Press, 1963
Buku Teks
Hobbs, Lisa
McGraw-Hill, 1967
Buku Teks
Nehru, Jawaharlal, 1889-1964, author
The John Day, 1945
Buku Teks