Tinga, K. (2020). Let's talk about the the Alternative Learning System. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Tinga, Kerry. "Let's Talk About the the Alternative Learning System." Manila Bulletin 2020.
Citatione MLA (9a ed.)Tinga, Kerry. "Let's Talk About the the Alternative Learning System." Manila Bulletin, 2020.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.