Villanueva, R. (2020). 7 of 10 Filipinos want ban on single-use plastics. Philippine Star.
Chicago Style aipamenaVillanueva, Rhodina. "7 of 10 Filipinos Want Ban on Single-use Plastics." Philippine Star 2020.
MLA aipamenaVillanueva, Rhodina. "7 of 10 Filipinos Want Ban on Single-use Plastics." Philippine Star, 2020.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.