Hawkins, Bonnie. "Analyzing pH: Comparing Citrus Fruits, Stain Removers and a Green Product". OER Commons. Institute for the Study of Knowledge Management in Education, 29 Nov. 2019. Web. 25 Nov. 2024. <https://goopenva.org/authoring/423-analyzing-ph-comparing-citrus-fruits-stain-remover>.
Hawkins, B. (2019, November 29). Analyzing pH: Comparing Citrus Fruits, Stain Removers and a Green Product. OER Commons. Retrieved November 25, 2024, from https://goopenva.org/authoring/423-analyzing-ph-comparing-citrus-fruits-stain-remover.