Dumlao, M. D. C. (2000). RS. IN Success story [column]: Selling products the non-traditional way. Philippine Daily Inquirer.
Chicago-viite (17. p.)Dumlao, Ma. Doris C. "RS. IN Success Story [column]: Selling Products the Non-traditional Way." Philippine Daily Inquirer 2000.
MLA-viite (9. p.)Dumlao, Ma. Doris C. "RS. IN Success Story [column]: Selling Products the Non-traditional Way." Philippine Daily Inquirer, 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.