R. A. Sartika, I. A. Fajarini, and L. Fitrianingsih, “Relationship Between Expenditures for Food Purchasing and Adolescent Anemia in Indonesia”, Pak. J. Nutr., vol. 18, no. 2, pp. 171–177, Jan. 2019, doi: 10.3923/pjn.2019.171.177.