IshakuN.; ChessedG.; PukumaM. S.; Na’achaF. E.; KureN. H. MALARIA INFECTION: SPECIATION, PARASITE DENSITY, ABO BLOOD GROUP, AND HAEMOGLOBIN CONCENTRATION AMONGST THE INHABITANTS OF BILLIRI LOCAL GOVERNMENT AREA, GOMBE STATE. FUDMA JOURNAL OF SCIENCES, v. 5, n. 1, p. 418 - 423, 29 Jun. 2021.