Shaza El-Shimey, Umar Idris, and Shabir Hakim. 2021. “ISTIJRAR CONTRACTS – AN UNTAPPED GEM IN HEDGING PRICE RISK IN COMMODITY ACCUMULATORS”. PalArch’s Journal of Archaeology of Egypt / Egyptology 18 (13):918-27. https://archives.palarch.nl/index.php/jae/article/view/8246.