Wibowo, Buddi. “Uji Empirik Metode Pengukuran Hedging Ratio Dan Efektivitas Hedging Di Bursa Komoditas Berjangka Jakarta”. Jurnal Manajemen & Agribisnis 14, no. 3 (November 2, 2017): 284. Accessed July 30, 2021. https://jagb.journal.ipb.ac.id/index.php/jmagr/article/view/15193.