Abraham, M. (1978). Factors relating to underachievement in English. Dept. of Publications, University of Kerala.
Lua i Stíl Chicago (17ú heag.)Abraham, Mercy. Factors Relating to Underachievement in English. Trivandrum: Dept. of Publications, University of Kerala, 1978.
Lua MLA (8ú heag.)Abraham, Mercy. Factors Relating to Underachievement in English. Dept. of Publications, University of Kerala, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.