Bataradewa, Surianto. “PERBANDINGAN ANTARA ANALISIS DATA LONGITUDINAL DAN SEKAT-SILANG”. Jurnal Natural 1, no. 2 (October 1, 2002): 50 - 64. Accessed May 21, 2026. https://jurnalnatural.unipa.ac.id/index.php/jn/article/view/97.