David, M., & David, M. I. (2017). Signs that your child is a victim of cyber bullying. Manila Bulletin.
Chicago Style (17. basım) AtıfDavid, Mark, ve Mark Isaiah David. "Signs That Your Child Is a Victim of Cyber Bullying." Manila Bulletin 2017.
MLA (9th ed.) AtıfDavid, Mark, ve Mark Isaiah David. "Signs That Your Child Is a Victim of Cyber Bullying." Manila Bulletin, 2017.
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