Mandiri (mengasah kemampuan diri) : pendidikan kewarganegaraan / Yuyus Kardiman, Alam S.; editor, Mei Dwi Utami, Roy P. Sitepu, Raymond Sitompul Natuurkundige Verhandelingen Van De Hollandsche Maatschappij Approaches to the science of socio-economic development / edited by Peter Lengyel; with contribution by Raymond Aron...[et al.] Beyond globalism : remaking American foreign economic policy / Raymond Vernon, Debora L. Spar Kiat kontan berpikir ekonomis di masa krisis : gagasan akademis yang perlu diketahui para praktisi / Roy SembelCleve The Atlantic gall crabs, family cryptochiridae: crustacea, Decapoda, Brachyura / Roy K. Kropp and Raymond B. ManningThe Soviet economy :a discussion /by Raymond Aron ... [et al.]Intermediate microeconomics :theory, issues, aplications /Roger Le Roy MullerIntermediate microeconomics : theory, issues, aplications / Roger Le Roy MullerThe trusts and economic control : a book of materials / Roy Emerson Curtis