Isiokwu Ya na Ya Yiri w06 11/1 p. 13-16 Isi Ihe Ndị Sitere n’Akwụkwọ Eklisiastis “Ọrụ Mmadụ Nile” Ụlọ Nche Ikwupụta Alaeze Jehova—1997 Ị̀ Na-arụzu Ibu Ọrụ Gị Nile N’ebe Chineke Nọ? Ụlọ Nche Ikwupụta Alaeze Jehova—1999 Ndụ Gị—gịnị Bụ Nzube ya? Ụlọ Nche Ikwupụta Alaeze Jehova—1997 Gini Na-eme Ka Ndụ Nwee Isi? Ụlọ Nche Ikwupụta Alaeze Jehova—2008 Jiri Ndụ Gị Mee Ihe Kasị Mma Ụlọ Nche Ikwupụta Alaeze Jehova—1998