KARAKTERISTIK PEREKAT DAN PEREKATAN TANIN RESORSINOL FORMALDEHIDA PADA SIREKAT AKASIA (Acacia mangium) dan PULAI (Alstonia scholaris): Adhesion and Adhesive Characteristics of Tannins Resorcinol Formaldehyde on Adherent Acacia (Acacia mangium) and Pulai (Alstonia scholaris). PERENNIAL, v. 17, n. 2, p. 35–44, 31 Oct.2021.