Can ethics be tought ? : perspectives, chalenges, and approaches at Havard Business School / Thomas R. Piper, MarC Gentile, Sharon Daloz Parles; foreword by, John H. Mcarthur/ Bloodlines : Rose, Cross, and The Christian / John Piper Kuasa kata-kata dan keajaiban Allah / John Piper dan Justin Taylor ; penerjemah, Soemitro Onggosandojo ; editor, Yosephin Widhi A. AWS certified solutions architect study guide : associate (SAA-C02) exam / Ben Piper, David Clinton Final judgment : the missing link in the JFK assassination conspiracy / by Michael Collins Piper Melihat dan menikmati Yesus kristus / penulis, John Piper ; penerjemah, Chrisnah W.J. Ruston ; editor, Irwan TjuliantoPenderitaan dan kedaulatan Allah / John Piper dan Justin Taylor ; penerjemah Soemitro Onggosandojo ; editor Irwan TjuliantoJadikan sekalian bangsa bersukascita : Supremasi allah dalam misi / John piperContractors, all risks and public liability insurance /by L.J. Piper AalLebenserinnerungen / Raymond Aron, Erkenntnis und Verantwortung