Asraf, Nava. Testing savings product innovations using an experimental methodology / Nava Asraf, Dean S. Karlan, Wesley Yin. - Manila, Philippines : Asian Development Bank, 2003. - 45 p. : ill., 28 cm. - ERD technical note, no. 8 . Includes bibliographical refences (p. 34-35). Subjects--Topical Terms: Microfinance--Evaluation--PhilippinesMikrofinans--Değerlendirme--Filipinler Dewey Class. No.: 339.46 / ASH 2003