“THE IMPROVED BPNN-NAR AND BPNN-NARMA MODELS ON MALAYSIAN AGGREGATE COST INDICES WITH OUTLYING DATA”. Jurnal Teknologi (Sciences & Engineering) 78, no. 12-3 (December 15, 2016). Accessed September 12, 2026. https://journals.utm.my/jurnalteknologi/article/view/10024.