[1] Islamic Univ Gaza, Fac Sci, Dept Biol, Gaza Strip, Palestine
[2] Minist Educ & Higher Educ, Directorate Educ East Gaza, Gaza Strip, Palestine
[3] Islamic Univ Gaza, Fac Educ, Gaza Strip, Palestine
[4] UNRWA, Rafah Elementary E Boys Sch, Jerusalem, South Rafah Edu, Palestine
[5] Ummah Open Univ, Fac Educ, Gaza Strip, Palestine
[6] Al Azher Univ, Fac Agr, Gaza Strip, Palestine