Prasad, P. (1998). Communication skills for: Degree, diploma students, business executives, engineers, charter accountants, TOFFEL, IELTS, and other competitive examinations (First edition.). S. K. Kataria.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Prasad, Prajapati. Communication Skills for: Degree, Diploma Students, Business Executives, Engineers, Charter Accountants, TOFFEL, IELTS, and Other Competitive Examinations. First edition. Delhi: S. K. Kataria, 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Prasad, Prajapati. Communication Skills for: Degree, Diploma Students, Business Executives, Engineers, Charter Accountants, TOFFEL, IELTS, and Other Competitive Examinations. First edition. S. K. Kataria, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.