...for teachers to foster and nurture their students' self-efficacy and through these beliefs raise their academic competence across subjects - they must first attend to the sources underlying them. This observation is both sound and practical given that only by understanding the genesis of self-beliefs can educators engage in practices and create interventions aimed at nurturing adaptive self-conceptions or eradicating maladaptive ones. (p. 106)

Understanding Self-Beliefs
Csaba Osvath

Pajares, F., Johnson, M. J., & Usher, E. L. (2007). Sources of Writing Self-Efficacy Beliefs of Elementary, Middle, and High School Students. Research In The Teaching Of English, 42(1), 104-120.