Author(s): Jur TI,

Date: Dec 31, 2019

Publisher: Universitas Asahan, Universitas Asahan

Author(s): Jur TI,

Date: Dec 31, 2019

Publisher: Universitas Asahan, Universitas Asahan

Author(s): Yesri Elva,

Date: Jul 20, 2019

Publisher: Universitas Asahan, Universitas Asahan