. . . "Super-wealth"@en . . . . . "Super-wealth the secret lives of the oil sheikhs"@en . "Shuyūkh al-nafṭ : asrār al-ʻālam al-sirrī li-mulūk al-nafṭ" . . . . "Super-wealth : the secret lives of the oil sheikhs" . . . . . . . .