Simul Press, 1976
Buku Teks
Ramos, Fidel V.
The Friends of Steady Eddie , 1996
Buku Teks
Cullen, L. M. (Louis M.)
Cambridge University Press, 2003
Buku Teks
Cullen, L. M. (Louis M.)
Cambridge, 2003
Buku Teks
Saniel, Josefa M.
University of the Philippines, 1963
Buku Teks