Hadidjaja, P., Mahfudin, H., Ismid, I. S., Bonang, E., Yunandi, R. and Hartana, D. B. (1996) “The effect of ascariosis treatment and health education on the cognitive function of primary school children”, Medical Journal of Indonesia, 5(4), pp. 189–94. doi: 10.13181/mji.v5i4.872.