Ritchie, N. K. ., and D. D. . Anggraeni. “Comparison of Actual Blood Type With Blood Type in Indonesian Identity Card of Pekayon Village- East Jakarta Residents in 2022”. Proceeding of the International Conference on Multidisciplinary Research for Sustainable Innovation, vol. 1, Aug. 2024, pp. 339-43, doi:10.31098/icmrsi.v1i.815.