Philippines. Congress Senate. (2002). The performance of the Senate: Twelfth Congress, first regular session, July 23, 2001-June 3, 2002. Legislative Publications Bureau.
Chicago-viite (17. p.)Philippines. Congress Senate. The Performance of the Senate: Twelfth Congress, First Regular Session, July 23, 2001-June 3, 2002. Manila: Legislative Publications Bureau, 2002.
MLA-viite (9. p.)Philippines. Congress Senate. The Performance of the Senate: Twelfth Congress, First Regular Session, July 23, 2001-June 3, 2002. Legislative Publications Bureau, 2002.
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