Puspita, Y., 		Kusumaningputri, R., & 		Supriono, H.
(2015).
 LEVEL AND SOURCES OF SELF-EFFICACY IN SPEAKING SKILLS OF ACADEMIC YEAR 2012/2013 ENGLISH DEPARTMENT STUDENTS FACULTY OF LETTERS, JEMBER UNIVERSITY (TINGKATAN DAN SUMBER EFIKASI DIRI DALAM KEMAMPUAN BERBAHASA INGGRIS MAHASISWA SASTRA INGGRIS ANGKATAN 2012/.
<em>Publika Budaya, 3</em>(1), 50-59.
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