H. T. Sinaga, Mahdiah, and M. Manalu, “Using Modified Growth Chart in Posyandu Effectively Improved Child Weight Gain in Deli Serdang District, Indonesia”, Pak. J. Nutr., vol. 14, no. 9, pp. 547–552, Aug. 2015, doi: 10.3923/pjn.2015.547.552.