(1)-paryavaran aur paristhitiki-bauththik prakashan, allahabad
(2)-manav aur paryavaran- ignou k snatak degree pathyakram k aoc (application oriented courses) me se ek course. samagri k liye egyankosh dekhe
ya snatak tratiy varsh k vidyarthi ya ignou ki kitabe bechne wali delhi ki shops se sampark karna chaiye
(3)-kuch school boards me paryavaran ek alag vishay k rup me padaya jata hai jaise national open school ya cbse board ya ye biology k ek bhag k rup me padaya jata hai. in pustako ka prayog karna chaiye. pdf samagri k liye nios ki site check karni chaiye.
(4)-gs manuals me ek bhag paryavaran aur jaiv vividhta par diya gaya hai
(5)-magazine’s k special issue jaise cst (march 2011 & feb 2012), chronicle value edition 4 (2012) (6)-yojna april 2010
(7)-yojna may 2012

sabhi sroto ka upog aavashyak nahi hai. apni suvidhaanusaar syllabus k mahatvpurn topics ko taiyar karne ki koshish honi chaiye.

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About dev

cse 2012 aspirant

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