Forecasting the Price of Cayenne Pepper in the Surabaya City Joshua Eka Putra, Hani Perwitasari, Jamhari Jamhari Buletin Penelitian Sosial Ekonomi Pertanian Fakultas Pertanian Universitas Haluoleo Vol. 23 No. 1 2021 DOI 10.37149/bpsosek.v23i1.16762