المؤلفون: Mansaray, Abubakarr S., Senior, Abu-Bakarr Massaquoi, Samai, Ibrahim Joe, Koroma, Bashiru M.

المصدر: Natural Resources ; volume 06, issue 09, page 491-501 ; ISSN 2158-706X 2158-7086

الاتاحة: http://dx.doi.org/10.4236/nr.2015.69047
http://www.scirp.org/journal/doi.aspx?DOI=10.4236/nr.2015.69047
http://file.scirp.org/xml/59936.xml