Yuniarti, Ratna, and Widya Hartati. “REGRESI NONPARAMETRIK MENGGUNAKAN METODE ROBUST DAN CROSS-VALIDATION (STUDI KASUS MAHASISWA STIA MUHAMMADIYAH SELONG)”. UJMC (Unisda Journal of Mathematics and Computer Science), vol. 3, no. 2, Dec. 2017, pp. 9-16, doi:10.52166/ujmc.v3i2.462.