IVAN, K., 		SUMARJAYA, I., & 		SUSILAWATI, M.
(2016).
 ANALISIS MODEL REGRESI NONPARAMETRIK SIRKULAR-LINEAR BERGANDA.
<em>E-Jurnal Matematika, 5</em>(2), 52 - 58.
doi:10.24843/MTK.2016.v05.i02.p121