ISBN 978-0-553-10214-7  Ko kere ju Titobi lo, Mary Morrissey, Ile ID, 2001.. 
Ni odun 1974, o wole si Bayero University College ti Yunifasiti Àmọ́dù Bello Zaria's, o si keko gboye ninu imo sayensi oselu ni odun 1979.. 