Andri, Andri, Enny Adelina, and Adrianton Adrianton. 2019. “Pemberian Zat Pengatur Tumbuh Sitokinin Terhadap Vigor Bibit Kakao (Theobroma Cacao L.)”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-Journal) 7 (3), 299 - 305. http://jurnal.faperta.untad.ac.id/index.php/agrotekbis/article/view/429.