Daily Zamboanga Times News from Tuesday, February 27, 2001. Tells of the creation of the new province, Zamboanga Sibugay, and other events of the time.
Hola! Zamboanga! Information about the history, culture, and the economy of the peninsula and its major cities. From the Department of Tourism.
Wikipedia: Zamboanga Peninsula Facts about the peninsula and administrative region IX. Explains how the old Region IX (Western Mindanao)was divided into two regions in 1975.
