BIGZAD, Abdul Wasi; AMIRY, Ahmad Jan; TAWHIDYAR, Khalilullah. The Effects of Oral and Written Feedback on Students’ Academic Achievement in the department of English at Parwan University. Nangarhar University Social Science Journal, [S. l.], v. 3, n. 04, p. 18–26, 2026. DOI: 10.70436/nussj.v3i04.107. Disponível em: https://nussj.nu.edu.af/index.php/nussj/article/view/107. Acesso em: 26 oct. 2026.