MGBE NDỊ MGBA NA-ECHIKE
Harold W. Percival
Copyright 1952 site na Harold W. Percival
Copyright 1980 site na The Word Foundation, Inc.
Ikike niile echekwara, gụnyere ikike iji mụta akwụkwọ a ma ọ bụ akụkụ ya n'ụdị ọ bụla.
Mbipụta mbụ, 1952
Mbipụta nke abụọ, 1988
Akwụkwọ nke atọ, 2012
ISBN: 978-0-911650-10-5