Bernal, Ignacio
Dolphin Books, 1963
Buku Teks SO
Nanny Sri Lestari
University of Indonesia, Faculty of Humanities, 2004
Artikel Jurnal
Ward, Russel
Oxford University Press, 1964
Buku Teks SO
Palmer, Vance
Currey O'Neill, 1966
Buku Teks SO
Ko, Jung-wook
Yon Lim kati nol, 2009
Buku Teks