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International Pentecostal Holiness Church
There are LOTS of click on links to help you with your research on this church! This is the home page.
BBC
Bbc: Religions: Customs & Beliefs of Pentecostalism
A nice review of the major beliefs and teachings of the Pentecostal Christian sect. They are sometimes mistakenly label "fundamentalist" when that is not correct.
BBC
Bbc: Religions: The Oneness Movement
The article provides an account on the movement that has developed in the Pentecostal religion in which they deny the Christian doctrine of the Trinity and instead argue that there is only one "person" in the "Godhead" who is Jesus Christ.