Suryadi, Oppie, AND 		Ashfahani, Shulhuly.
" Peranan Internal Public Relations PT Prasadha Pamunah Limbah Industri Dalam Mensosialisasikan Brand PPLI" <em>Jurnal Ilmiah Komunikasi (JIKOM) STIKOM IMA</em> [Online], Volume 12 Number 02 (30 July 2020)