Ravinther Kunju Raman. (2007). Personal selling process (PSP): An empirical study of sales techniques used by sales people in a consumer electronics organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ravinther Kunju Raman. Personal Selling Process (PSP): An Empirical Study of Sales Techniques Used by Sales People in a Consumer Electronics Organization. 2007.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ravinther Kunju Raman. Personal Selling Process (PSP): An Empirical Study of Sales Techniques Used by Sales People in a Consumer Electronics Organization. 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.