Hasibuan, H. S., M. P. Wisnubroto, and D. Rezki. “IDENTIFY THE EFFECT OF ALTITUDE ON THE MORPHOLOGY OF SUGAR PALM PLANTS”. Jurnal Ilmu-Ilmu Pertanian Indonesia, vol. 26, no. 2, Dec. 2024, pp. 153-62, doi:10.31186/jipi.26.2.153-162.