S Upendran. (2013). Know your English: Words frequently confused. Universities press.
استشهاد بنمط شيكاغوS Upendran. Know Your English: Words Frequently Confused. Chennai: Universities press, 2013.
MLA استشهادS Upendran. Know Your English: Words Frequently Confused. Universities press, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.