Isiokwu Ya na Ya Yiri w00 1/1 p. 21-23 Ndị Okpukpe “Polish Brethren”—N’ihi Gịnị Ka E Ji Kpagbuo Ha? “Oké Onyinye” E Nyere Poland Ụlọ Nche Ikwupụta Alaeze Jehova—2007 Okpukpe n’Ime Poland nke Taa Teta!—1998 Ha Chọrọ Ụzọ ahụ Dị Mkpagide Ụlọ Nche Ikwupụta Alaeze Jehova—2003 Uwe na Ejiji Bụụrụ M Ihe Mgbochi Teta!—2004 Ndụ Na-enye Afọ Ojuju na Obi Ụtọ nke Iji Ọchịchọ Obi Achụ Onwe Onye n’Àjà Ụlọ Nche Ikwupụta Alaeze Jehova—2004 “Asụsụ Kewara Anyị Ma Ịhụnanya Jikọtara Anyị” Ụlọ Nche Ikwupụta Alaeze Jehova—2007