Passenger ship (IMAGE) Cranfield University Caption A passenger ship operated by PT. Pelayaran Nasional Ekalya Purnamasari (PNEP) Credit Sciencedirect.com Usage Restrictions n/a License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.