Humaira, Fitrah, Tengku Musri, Sarimuddin Sarimuddin, Dwi Alham, and Aurista Ilmah. 2018. “Analisis Robustness Teks Captcha Paypal HIP Menggunakan Template Matching”. Journal of Applied Informatics and Computing 2 (2), 29-33. https://doi.org/10.30871/jaic.v2i2.1039.