[RETRACTED]. “[RETRACTED] : Pengaruh Kontrak Futures Indeks Terhadapvolatilit Asunderlying Spot Market Di Indonesia”. Jurnal Manajemen 21, no. 1 (February 24, 2017): 17–32. Accessed July 3, 2024. https://ecojoin.org/index.php/EJM/article/view/145.