Michael Okpara University of Agriculture Umudike » Nigeria The results are being filtered by the organization: Michael Okpara University of Agriculture Umudike Clear Search A B Ç D E F G H I J K L M N O P Q R S T U V W Y Z A Chigozie Acha, , PhD Lecturer Michael Okpara University of Agriculture UmudikeStatistics City Umuahia Nigeriahome Biographical Info Contact method: LinkedIn Updated 7 months ago.