APA-čujuhus (7. p.)
Pillai, R. S. N., & Bagavathi. Modern commercial correspondence: For graduation courses, competitive examinations, business executives (First edition.).
Chicago-čujuhus (17. p.)
Pillai, R. S. N., juo Bagavathi. Modern Commercial Correspondence: For Graduation Courses, Competitive Examinations, Business Executives. First edition.
MLA-čujuhus (9. p.)
Pillai, R. S. N., juo Bagavathi. Modern Commercial Correspondence: For Graduation Courses, Competitive Examinations, Business Executives. First edition.
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