Lubis, A. F., dan R. Tistama. “IMPROVEMENT OF PHYSIOLOGICAL CONDITION AND LATEX FLOW OF RUBBER CLONES AFFECTED BY TAPPING PANEL DRYNESS IN RESPONSE TO COMBINATION NAPHTHALENE ACETIC ACID, ASCORBIC ACID, AND NUTRITION TREATMENTS”. Jurnal Penelitian Karet, vol. 39, no. 2, Desember 2021, hlm. 115-24, doi:10.22302/ppk.jpk.v39i2.800.