What is R^2: https://www.researchgate.net/post/What_does_R_square_Adjusted_R_and_R_indicate_in_t erms_of_Multiple_Regression_Analysis R?: http://blog.minitab.com/blog/adventures-in-statistics-2/regression-analysis-how-doi-interpret-r-squared-and-assess-the-goodness-of-fit Seberapa besar R yg baik? http://blog.minitab.com/blog/adventures-in-statistics-2/how-high-should-r-squaredbe-in-regression-analysis Regresi linear dan bergada indonesia: https://www.academia.edu/11671382/Statistika_Analisis_Regresi