Mayura, Eliza, et al. “Rice Husk Biochar and Foliar Fertilizer Application in Improving Growth and Production of Patchouli Plants (Pogostemon Cablin Benth)”. Agro Bali : Agricultural Journal, vol. 9, no. 1, Apr. 2026, pp. 182-96, doi:10.37637/ab.v9i1.2619.