Sayuti, Kesuma, et al. “The Effect of Temperature and Drying Time on the Characteristic of Reddish Grey Fruit Instant Powder (Sizyqium Cumini)”. Pakistan Journal of Nutrition, vol. 10, no. 9, Aug. 2011, pp. 846–850, https://doi.org/10.3923/pjn.2011.846.850.