TY  - BOOK
TI  - à¸à¸¹à¹à¸¡à¸·à¸­à¹à¸®à¹à¸à¸£à¸¥à¸´à¸à¹à¸¥à¸°à¸à¸²à¸£à¹à¸à¹à¸à¸²à¸à¸à¸²à¸à¸­à¸¸à¸à¸ªà¸²à¸«à¸à¸£à¸£à¸¡
U1  - 621.51 
PY  - 2530///
CY  - à¸à¸£à¸¸à¸à¹à¸à¸à¸¯
PB  - à¹à¸ªà¸£à¸´à¸¡à¸§à¸´à¸à¸¢à¹à¸à¸£à¸£à¸à¸²à¸à¸²à¸£
KW  - à¹à¸®à¸à¸£à¸­à¸¥à¸´à¸à¸ªà¹
ER  -