Link Hasil Penelitian yang Berhubungan dengan Bangun Datar Persegi dan Belah Ketupat.

https://www.google.co.id/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwic_JCnpffPAhXEMI8KHZPcA4sQFggaMAA&url=http%3A%2F%2Frepository.unib.ac.id%2F8728%2F1%2FIV%2CV%2CLAMP%2CII-14-ris.FK.pdf&usg=AFQjCNGmN5gL5EsPUxgylXhodGrjxf4EbQ&sig2=iBdt2iiZ7rUCFmvNj2c3IQ&bvm=bv.136593572,d.c2I


https://www.google.co.id/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0ahUKEwic_JCnpffPAhXEMI8KHZPcA4sQFghLMAc&url=http%3A%2F%2Frepo.iain-tulungagung.ac.id%2F145%2F6%2FBAB%2520IV%2520Fix.pdf&usg=AFQjCNGoxO_5a1bLstT5EH4wPFn97KkNhw&sig2=hzVzxoiP7-a6SastUH9MkA&bvm=bv.136593572,d.c2I