JIRASINGHE DILUM. (1996). COMPETENT HEAD: A JOB ANALYSIS OF HEADS`TASK AND PERSONALITY FACTOR. FALMER PRESS.
Lua i Stíl Chicago (17ú heag.)JIRASINGHE DILUM. COMPETENT HEAD: A JOB ANALYSIS OF HEADS`TASK AND PERSONALITY FACTOR. LONDON: FALMER PRESS, 1996.
Lua MLA (9ú heag.)JIRASINGHE DILUM. COMPETENT HEAD: A JOB ANALYSIS OF HEADS`TASK AND PERSONALITY FACTOR. FALMER PRESS, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.