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Clay minerals in some cocoa growing soils of Ghana = Les minéraux argileux de quelques sols des plantations de cacao au GhanaAHENKORAH, Y.Conférence internationale de Recherches agronomiques cacaoyères. 1967, pp 87-93, 7 p.Conference Paper

INOSITOL PENTA- AND HEXAPHOSPHATE CONTENT OF SOME COCOA SOILS IN GHANA = TENEUR EN INOSITOL PENTA- ET HEXAPHOSPHATE DE QUELQUES SOLS DE PLANTATIONS DE CACAOYER DU GHANAHALM BJ; AHENKORAH Y; APPIAH MR et al.1982; ZEITSCHRIFT FUER PFLANZENERNAEHRUNG UND BODENKUNDE; ISSN 0044-3263; DEU; DA. 1982; VOL. 145; NO 6; PP. 586-592; ABS. GER; BIBL. 1 P.Article

Determination of available sulphate in some soils of Ghana using five extraction methodsAPPIAH, M. R; AHENKORAH, Y.Biology and fertility of soils. 1989, Vol 8, Num 1, pp 80-86, issn 0178-2762Article

Phosphatase activity of soil as affected by cocoa pod ashAPPIAH, M. R; HALM, B. J; AHENKORAH, Y et al.Soil biology & biochemistry. 1985, Vol 17, Num 6, pp 823-826, issn 0038-0717Article