SUBANTI, S., 		HAKIM, A., 		IRAWAN, B., & 		HAKIM, I.
(2017).
 Determinant of Willingness to Pay and Economic Value for Tourism Object using Contingent Valuation Method: The Case of Sangiran Sites, Province of Central Java, Indonesia.
<em>Journal Of Environmental Management And Tourism, 8</em>(4), 867-874.
doi:10.14505//jemt.v8.4(20).16