Attanayake, R.N.2016-06-232016-06-232015Attanayake, R.N. 2015. Lesson 26: Detection of plant viruses, In: Practical Manual for GCE A/L Biosystem Technology Teachers. Ministry of Education and University of Kelaniya, Sri Lanka. 183-193 pp.978-955-4563-50-6http://repository.kln.ac.lk/handle/123456789/13667enLearning Object