| 1 | Bates and Evans (1993) General Science, English for Science and Technology. Longman Press |
| 2 | Widdowson (1982) Reading and Thinking in English, Oxford University Press |
| 3 | Jordan (1996) Academic Writing Courses, Collins ELT |
| 4 | Chaplen (1995) A course in Intermediate Scientific English, Bell &Hyman |
| 5 | Heller (1995), Life, The Science of Biology, Sinauer&Freeman |
| 6 | Various biological websites |
| 7 | https://www.bio.org/what-biotechnology |
| 8 | Azar BS & Hagen SA (2017) Basic Enslish Grammer Fourth Edition, Pearson Publishment |