Nurfaizah, S., M. Arief, and U. Bahrun. “Analysis of Interleukin-4 in Thrombocytopenia Autoimmune Patients”. Biomedika, Vol. 13, no. 2, Sept. 2020, pp. 131-5, doi:https://doi.org/10.31001/biomedika.v13i2.708.