Maulida, Ria, Lukytawati Anggraeni, and PasaribuSamsul Hidayat. “Testing on Market Efficiency of the Cacao Commodity for the Futures Market in Jakarta Future Exchange”. Jurnal Manajemen & Agribisnis 15, no. 1 (March 30, 2018): 53. Accessed October 7, 2024. https://journal.ipb.ac.id/index.php/jmagr/article/view/18093.