@unpublished{repository35954, title = {Psikologi Positif \& Kes.Mental 6B}, publisher = {universitas muhammadiyah Prof. DR. HAMKA}, note = {Unpublished}, url = {http://repository.uhamka.ac.id/id/eprint/35954/}, author = {Yulmaida Amir, Yulmaida} }