Atienza, L. M., D. J. A. Sunico, L. B. Ancheta, J. R. D. Aranzado, C. J. G. Mercado, and A. S. A. Barrion. “Physicochemical and Antioxidant Properties of Selected Philippine Indigenous Berries”. International Research Journal on Innovations in Engineering, Science and Technology, vol. 7, Dec. 2021, pp. 20-27, https://ojs.batstate-u.edu.ph/index.php/IRJIEST/article/view/63.