Samlafo, B. V., L. H. Bobobee, P. O. Yeboah, and Y. Serfor- Armah. 2014. “Speciation of Se(IV) and Se(VI) in Human Blood Samples from Residents of Wassa West District, a Mining Impacted Area of Ghana”. The International Journal of Science & Technoledge 2 (9). http://internationaljournalcorner.com/index.php/theijst/article/view/138183.