SULISTIONO , TEGUH, EKO WAHYONO, ACHMAD FAQIH, and DODI BUDIROKHMAN. “THE EFFECT OF PLANT SPACING AND NPK FERTILIZER ON THE GROWTH AND YIELD OF SORGHUM NUMBU VARIETY”. TPM – Testing, Psychometrics, Methodology in Applied Psychology 32, no. 2 - June (June 5, 2025): 100–107. Accessed September 12, 2025. https://tpmap.org/submission/index.php/tpm/article/view/387.