http://protist.i.hosei.ac.jp/PDB/Images/chlorophyta/spirogyra/group_C/varians/sp_02.html 8.06 8-10-15

http://teknologifarmasiamylum.blogspot.co.id/2014/10/amylum.html

http://nidaafifah89.blogspot.co.id/2015/09/mikroskopi-amylum.html

http://t3.gstatic.com/images?q=tbn:ANd9GcRM9rvKXX16LeNrN13Jy--XaB5TPmMvqJFRQCK0MhzqLE_GKv3o

http://t3.gstatic.com/images?q=tbn:ANd9GcRM9rvKXX16LeNrN13Jy--XaB5TPmMvqJFRQCK0MhzqLE

https://www.studyblue.com/notes/note/n/lab-midterm-1/deck/9656771

http://khaeraumma.blogspot.co.id/2013/05/praktikum-biologipengenalan-sel.html