PERAMALAN TIME SERIES INDEKS HARGA SAHAM GABUNGAN MENGGUNAKAN ELMAN RECURRENT NEURAL NETWORK DENGAN ALGORITMA BACKPROPAGATION THROUGH TIME TIME SERIES FORECASTING FOR COMPOSITE STOCK PRICE INDEX USING ELMAN RECURRENT NEURAL NETWORK WITH BACKPROPAGATION TH - Rosalina Berlinti (Universitas Telkom, 2006)