Dianastri, Rr. Nektara, 		Astuti, Pudji, AND 		Prasetya, Rendra.
" Daya Hambat Ekstrak Biji Kopi Robusta (Coffea Canephora) terhadap Bakteri Porphyromonas gingivalis (in vitro)" <em>STOMATOGNATIC - Jurnal Kedokteran Gigi</em> [Online], Volume 18 Number 2 (11 October 2021)