Lehman, R. M., & Conceição, S. C. O. (2014). Motivating and retaining online students: Research-based strategies that work (First edition.). Jossey-Bass.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিLehman, Rosemary M., এবং Simone C. O. Conceição. Motivating and Retaining Online Students: Research-based Strategies That Work. First edition. San Francisco, CA: Jossey-Bass, 2014.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিLehman, Rosemary M., এবং Simone C. O. Conceição. Motivating and Retaining Online Students: Research-based Strategies That Work. First edition. Jossey-Bass, 2014.
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