found: Kenyatta, R. Terra nova [SR] p1973:container (Jonas Gwangwa)
found: Wikipedia, July 30, 2013(Jonas Gwangwa; Jonas Mosa Gwangwa; b. 1941 in Orlando East, Soweto; important South African jazz figure for over 40 years; played trombone with the Jazz Epistles; left Africa in the early 1970s, returned in 1991)
found: Artist Direct website, viewed July 30, 2013(Jonas Gwangwa; composer in addition to being a musician; after leaving South Africa in the 1970s, toured Europe, attended Manhattan School of Music, New York; served ten years as musical director of the NAC cultural ensemble tour, "Amandla")
found: World news network website (wn.com), viewed July 30, 2013(Jonas Gwangwa Morungwa; Jonas Gwangwa)