I used the following sources for editing the Wikipedia article Tea in April 2008:
Kiple, Kenneth F. (October 2000). The Cambridge World History of Food (Volume 1). Cambridge University Press. ISBN0521402166. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
Sanyal, Amitava (April 13), "How India came to be the largest tea drinking nation", Hindustan Times, New Delhi, p. 12 {{citation}}: Check date values in: |date= and |year= / |date= mismatch (help).
Karmakar, Rahul (April 13), "The Singpho: The cup that jeers", Hindustan Times, New Delhi, p. 12 {{citation}}: Check date values in: |date= and |year= / |date= mismatch (help).
I used the following sources for editing the Wikipedia article Hugo Chavez in April 2008:
"Year in Review-Chronology" (pp 5-30) in Encyclopædia Britannica Almanac 2008. 2008 Encyclopædia Britannica, Inc. ISBN-13: 978-1-59339-414-1.
I used the following sources for editing the Wikipedia article Gunpowder in April 2008: