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E.S.C. Smith (AES, Keravat), Bibliography of Cocoa in Papua New Guinea, PNG Dept of Primary Industry, Sep 1982
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J.E. Moxon, LAES Bulletins in Simple English (Pests in Cocoa), n.d.
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J. Wylik & R. Sims, Commercial Agricultural Production in PNG, n.d., c.1983
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Cocoa, Port Moresby, Dept of Agricutture and Livestock, Farming Notes No.23, revised edition 1992 by Colin Benton and Jane Belfield (CQIP)
Catholic Bishops Conference correspondence, 1967
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Catholic Bishops Conference correspondence, 1967
Catholic Bishops Conference correspondence, 1982
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Catholic Bishops Conference correspondence, 1982
Catholic Bishops Conference correspondence, 1986
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Catholic Bishops Conference correspondence, 1986
Catholic Bishops Conference correspondence, 1994
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Catholic Bishops Conference correspondence, 1994
Catholic Bishops Conference correspondence, 2003
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Catholic Bishops Conference correspondence, 2003
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Duncan Overfield, Coffee and smallholder households in Benabena District, Eastern Highlands province: economic issues and interim results, Coffee Discussion Paper No.10, Goroka, Coffee Industry Corporation Ltd, Industry Affairs Division, Mar 1993, 32pp.