Isiokwu Ya na Ya Yiri w90 8/15 p. 4-7 Akara Aka Ò Kwesịrị Ịchị Ndụ Gị? Ikwere n’Akara Aka Ọ̀ Na-achị Ndu Gi? Ụlọ Nche Ikwupụta Alaeze Jehova—1990 Bible Ọ̀ Na-akụzi Nkweta n’Akara Aka? Ụlọ Nche Ikwupụta Alaeze Jehova—1996 Ọ̀ Bụ Akara Aka Ka Ọ Bụ Nanị Ihe Ndabara? Teta!—1999 Ihe Ọghọm—Akara Aka Ka Ọ̀ Bụ Ihe Ndabara? Ụlọ Nche Ikwupụta Alaeze Jehova—1991 Ịchọ Ọdịnihu A Kara Aka nke Mmadụ Teta!—1999 Ọ̀ Bụ Akara Aka Na-ekpebi Ọdịnihu Gị? Ụlọ Nche Ikwupụta Alaeze Jehova—1991 À Na-ebu Ụzọ Edetu Ọdịnihu Anyị? Ụlọ Nche Ikwupụta Alaeze Jehova—1998 Akara Aka Ọ̀ Na-achịkwa Ndụ Gị? Ụlọ Nche Ikwupụta Alaeze Jehova—1996 Ihe Ọ Bụla Nwere Oge Ụlọ Nche Ikwupụta Alaeze Jehova—2009 Ị Pụrụ Ikpebi Ihe Ọdịnihu Gị Ga-agụ Teta!—1999