Article · Journal · 2015
Joseph Ackora-Prah, Yao Elikem Ayekple, Robert Acquah, Perpetual Andam Boiquaye, Eric Adu Sakyi, Daniel Gyamfi
Advances in Pure Mathematics
Read it10.4236/apm.2015.54019
as printed: Robert Kofi Acquah
as printed: Perpetual Saah Andam