Rinvolucri, Mario
More grammar games : cognitive, affective, and movement activities for EFL students
Cambridge University Press, 2006
 Buku Teks
Watt, Mildred
Between the Hammer and the Anvil / Mildred Watt
The Hawthorn Press, 1972
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English, John W. author
Articles and insights
Allyn and Bacon, 1993
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Francisco, Juan R.
Philippine palaeography
Linguistic Society of The Philippines, 1973
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Forbes, W. Cameron
Philippine Islands
Houghton Mifflin, 1928
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