Given the task definition and input, reply with output. Given a sentence in English language, translate the sentence to Igbo language keeping the meaning of the original sentence intact

English sentence: In terms of representation, a great introduction to the issues of non-response and non-response bias is the National Research Council report on Nonresponse in Social Science Surveys: A Research Agenda (2013) . Another useful overview is provided by (Groves 2006) .
Na okwu nke onodi, a oke iwebata ka okwu nke na-abughi omume na-abughi omume echiche j bu National Research Council akuk on Nonresponse na Social Science nnyocha ndi e mere: A Research Agenda (2013) . Oz bara uru nnyocha na-nyere site (Groves 2006) . Ozkwa, dum puru iche mbiputa nke Journal of Official Statistics, echiche ha na eze Quarterly, na ndi mere n'ubchi ndi American Academy of Political and Social Science e biputara na isiokwu nke na-abughi omume.