Pei-Chann Chang Chen-Hao Liu Chin-Yuan Fan Hsiao-Ching Chang Data Clustering and Fuzzy Neural Network for Sales Forecasting in Printed Circuit Board Industry. 107-113 2007 conf/cidm/2007 CIDM https://doi.org/10.1109/CIDM.2007.368860 db/conf/cidm/cidm2007.html#ChangLFC07