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Journal Articles
Effects of five agricultural wastes as soil amendments on the incidence of Fusarium wilt of tomato  MJP Porras and NG Tangonan
USM CA Research Journal 9, 1-10, 1998
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Anthracnose leafspot of alugbati (Basella rubra L.) caused by Colletotrichum gloeosporioides Penz. NG Tangonan
USM CA Research Journal 8(2), 196-197, 1997
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Rust of kalachuchi (Plumeria acuminata Ait.) caused by Coleosporium plumeriae Pat. NG Tangonan, M Kakishima, FA Sebastian, and RA Empanado
USM R and D Journal 5(1), 1-4, 1997
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Utilization of six banana varieties for culture media of ten fungal pathogens CT Jaquias and NG Tangonan
USM R and D Journal 5(2), 140-157, 1997
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Research profile of undergraduate theses in four colleges and one institute of the University of Southern Mindanao, Kabacan, Cotabato:1997 NG Tangonan and MR Tan
USM R and D Journal 5(1), 104-112, 1997
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The USM Research and Development Journal in review:1990/1994-96 MR Tan and NG Tangonan
USM R and D Journal 4(3), 84-95, 1996
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Phytopathological note: etiology of white root rot of rubber NG Tangonan, FA Sebastian, and FD Cuambot
USM R and D Journal 4(1), 9-12, 1996
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Leaf blight of star apple caused by Curvularia lunata AG Mercado and NG Tangonan
USM R and D Journal 4(1), 71-72, 1996
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Research profile of four colleges and one institute in the University of Southern Mindanao, Kabacan, Cotabato, Philippines:1990-1995/1997 NG Tangonan and MR Tan
USM R and D Journal 3(2), 198-218, 1995
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The perennial trees and shrubs in the University of Southern Mindanao, Kabacan, Cotabato, Philippines: circa 1995 NG Tangonan
USM CA Research Journal 6(1), 1-3, 1995
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54 journals, 32 conferences, 10 books, 16 societies, 28 awards
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