https://books.google.co.in/books?id=rRJ2HdlwjkwC&pg=PA107&lpg=PA107&dq=leisured+population+is+to+be+happy,+it+must+be+an+educated+population&source=bl&ots=MNn1uFMp4Q&sig=ACfU3U2py5-i-BHXVQKpuotItl734x3Chw&hl=en&sa=X&ved=2ahUKEwiWwuHt_Zv4AhXYxTgGHTxgCT8Q6AF6BAghEAM#v=onepage&q=leisured%20population%20is%20to%20be%20happy%2C%20it%20must%20be%20an%20educated%20population&f=false
q. 109 and associated key -->mankind and productivity of machines question
https://timesofindia.indiatimes.com/blogs/toi-edit-page/running-on-empty-how-water-might-dissolve-the-indian-union-if-it-cant-resolve-river-disputes/ -->water management
https://books.google.co.in/books?id=w9nDF2hsN1oC&pg=PA93&lpg=PA93&dq=for+two+or+three+generations+part,+ever-increasing+numbers+of+individuals+have+been+living+as+workers+merely,+not+as+human+beings.&source=bl&ots=QVjO079jFP&sig=ACfU3U0fq0KVBEco_ckztpgVe5PQAZQcCA&hl=en&sa=X&ved=2ahUKEwjAs9yf0Jj4AhVwgFYBHUvmDeIQ6AF6BAgkEAM#v=onepage&q=for%20two%20or%20three%20generations%20part%2C%20ever-increasing%20numbers%20of%20individuals%20have%20been%20living%20as%20workers%20merely%2C%20not%20as%20human%20beings.&f=false --->leisure
baaki aap sab search krlo google books pe
