Ningsih, S. S. (2019). Generalized Space-Time Autoregressive (GS-TAR): (Studi Kasus Peramalan Harga Saham Syariah Empat Perusahaan di JII). Journal Focus Action of Research Mathematic (Factor M), 2(1), 39–50. https://doi.org/10.30762/factor_m.v2i1.1684