Mepụta nsụgharị dị mgbagwoju anya nke ahịrịokwu a Nhazi akara - weghachite data na-agbanye n'ụzọ na-agbakwunye, Maunder M.N. 2003.
N'ezie, ihe dị mgbagwoju anya nke ahịrịokwu ahụ bụ "Nhazi akara - weghachite data na-aga n'ihu n'ụzọ dịkwuo n'otu, nke na-ejikọta akara - weghachite data na usoro nchịkwa nke ndị mmadụ na ụdị data ndị ọzọ. "