Purba, Daniel Tua, et al. “The Effect of Concentration Areca Seed Extract (Areca Catechu L.) on Physicochemical and Sensory Properties of Pineapple Juice (Ananas Comosus L. Merr) As a Functional Beverages”. Indonesian Food Science and Technology Journal, vol. 5, no. 2, July 2022, pp. 49-56, doi:10.22437/ifstj.v5i2.17303.