TY  - BOOK
AU  - Lubna Naz
AU  - Department of Mathematical and Statistics
TI  - On Effect of Septic Nonlinearity on The Investigation of Duffing Oscillator 
U1  - R/IMS-20 
PY  - 2019///
CY  - Nawabshah
PB  - QUEST
UR  - https://tinyurl.com/yu4bvus
ER  -