مقالة · مجلة · 2002
O. Gloria Ezeobi, Felix Osita Agbakire, Anene, Nnadi Emmanuel, Chinedu Christopher Chukwuka
Zenodo (CERN European Organization for Nuclear Research)
كما طُبع: Ezeobi, Obiakere Uchenna
كما طُبع: Agbakire, Felix Osita
كما طُبع: Chukwuka, Chinedu Christopher