http://repository.uhamka.ac.id/id/eprint/11264/ Literacy of Human Values as Social Foundation of Indonesia in the Study of Civic Engagement Education in Industrial Revolution 4.0 Era Eko Digdoyo, Eko http://repository.uhamka.ac.id/id/eprint/11264/1/Scopus%20Q3%20Eko%20DigDoyo.pdf Unduh!