Putnam, Emily James
Lady studies of certain significant phases of her history
Univesity of Chicago, 1970
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Corazon C. Aquino : early assessments of her presidential leadership and administration and her place in history
edited by Jose V. Abueva and Emerlinda R. Roman
University of the Philippines Press, 1993
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Benjamin, Jules R.
A students guide to history
Bidford Books, 1998
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Shin, Hyong Sik
An Easy guide to Korean history
Lee Ki-Taek, 2010
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Caenegem, R.C. van
Guide to the sources of medieval history
North-Holland Publishing, 1978
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