mencari nilai x dan y
http://www.mathworks.nl/matlabcentral/newsreader/view_thread/249507

http://mukhlis-biologihijau.blogspot.de/2011/08/cara-membuat-ragi-tempe-dan-fermentasi.html

negatif correlation

http://www.statpac.com/statistics-calculator/correlation-regression.htm

excell decimal thousand

http://doku.info/doku_article_59.html

r square
http://www.fp.unud.ac.id/ind/wp-content/uploads/mk_ps_agribisnis/ekonomitrika/2_.%20%20Analisis%20Regresi%20Linier%20Sederhana.pdf

spell check

http://www.paperrater.com/site/show_sub/ea7db2af71/4517576

pesawat

http://gede123.blogspot.de/2012/04/cara-membuat-pesawat-rc-dari-gabus.html

pesawat

http://www.youtube.com/watch?feature=endscreen&v=jv3D30RGT-g&NR=1