TThe Journals are published quarterly subscription rate for individuals is US$25 per issue (Foreign Price) and N5,000 (Domestic). Per annum cost is US$100 (Foreign) and N15,000 (Domestic). For Nigerian Residents subscription fees can be paid either through bank draft made payable to Duncan Science Company or by direct payment into Duncan Science Company Account Number 2008891152 with First Bank Nigeria

Non-Nigerian Residents may be required to make payment through Western Union. (Before payment please obtain the receiver name from the Subscription Officer. After payment inform the Subscription Officer of the money Transfer Control Number (MTCN), Question and Answer). The Journals will be sent to you on receipt of the Bank Draft, Payment Slip or MTCN by the Subscription Officer, Duncan Science Journal Series, 13/14 Onuiyi Link Road, P.O. Box 279, Nsukka, Enugu State, Nigeria. Email: Tel: +2347038597314



Mrs. N. U. Ekwere
The Managing Editor,
Duncan Science publication,
172 Goldie Street,
P. O. Box 727, G. P. O., Calabar
Cross River State, Nigeria,
Tel: +2347038597314