@article{IJISR-18-143-13,
author = {David MALALA NTAMBUE and Gratien MOKONZI BAMBANOTA},
title = {{}},
journal = {International Journal of Innovation and Scientific Research},
volume = {39},
year = {2018},
pages = {151--162},
issue = {2},
number = {2},
issn = {2028-9324},
url = {http://www.ijisr.issr-journals.org/abstract.php?article=IJISR-18-143-13},
abstract_html_url = {http://www.ijisr.issr-journals.org/abstract.php?article=IJISR-18-143-13},
pdf_url = {http://www.issr-journals.org/xplore/ijisr/0039/002/IJISR-18-143-13.pdf},
document_type={Article},
source={www.issr-journals.org}
}