R. Utomo, C. T. Noviandi, S. P. Sasmito Budhi, A. Agus, and A. M. Prananda, “The Effects of Storing Ceara Rubber (Manihot glaziovii) Leaves in Different Forms on Crude Protein and Carotene Contents”, Pak. J. Nutr., vol. 18, no. 3, pp. 211–215, Feb. 2019, doi: 10.3923/pjn.2019.211.215.