Barcelo, J. M., Abril, J. N., Castillo, K. M. P., Diaz, A., Ladera, J. P., Javar, J., & Labuguen, E. (2014). Detection of copper (II) and iron (III) in aqueous solutions using the spectroscopic characteristics of Bugnay (Antidesma bunius) anthocyanins. Annals of Tropical Research.

Barcelo, Jonathan M., Jan Narlo Abril, Khristine Mereille P. Castillo, Alloisa Diaz, Jonathan Paul Ladera, Jaemie Javar, and Elisha Labuguen. "Detection of Copper (II) and Iron (III) in Aqueous Solutions Using the Spectroscopic Characteristics of Bugnay (Antidesma Bunius) Anthocyanins." Annals of Tropical Research 2014.

Barcelo, Jonathan M., et al. "Detection of Copper (II) and Iron (III) in Aqueous Solutions Using the Spectroscopic Characteristics of Bugnay (Antidesma Bunius) Anthocyanins." Annals of Tropical Research, 2014.