00620nam a22001817a 4500 230711b |||||||| |||| 00| 0 eng d National Science Library National Science Library 54 P3 Singh, Yogesh Kumar रसायन विज्ञान: आधुनिक शिक्षण विधियां Rasayan vigyan: Aadhunik shikshan vidhiyaan Delhi: A P H Publishing Corporation, 2003 171p. Science Chemistry Sharma, Archnesh (Ed.) udc BK 51447 51447 0 0 udc 0 54_P3 0 81632 NSL NSL GF/Rk-1/C-9/R-3 2003-01-08 0 54 P3 180357 2023-07-11 00:00:00 2023-07-11 BK