TY  - BOOK
AU  - Park,Sang-kyu (朴相圭)
TI  - 행복수업 = Happiness class: becoming a manager of your own emotions 
SN  - 9788999721014 (pbk.)
U1  - 158 23
PY  - 2020///
CY  - Seoul
PB  - Hakji Branch
KW  - Psychology
KW  - Happiness
N1  - References included
ER  -