edited by Mary Cherian and Rosalind Y. Mau
McGrow-Hill, , 2003
Buku Teks
edited by Gloria Poedjosoedarmo
SEAMEO Regional Language Centre, 2004
Buku Teks SO
Kachru, Yamuna
Routledge, 2008
Buku Teks SO
Springer Cham, 2021
eBooks
Eleanor O'Leary.
Wiley-Blackwell, 2013
Buku Teks SO