ข้อ 12: BIOLOGY-PLANT-REPRODUCTION-ASEXUAL #PART 1-CONCEPT-ASEXUAL VS SEXUAL REPRODUCTION COMPARISON

http://www.slideshare.net/sawaddee/ss-10104763

http://www.slideshare.net/rociyuste/natural-science-sexual-reproduction-in-plantsrocio-yustepresentation

https://www.studyblue.com/notes/note/n/week-13-1/deck/14812548

http://www.slideshare.net/msoonscience/sci-9-lesson-4-mar-1-and-2-ch-52-asexual-reproduction

http://biology4isc.weebly.com/4-reproduction-in-angiosperms.html