Sato, Hiroshi, Akiko Tanaka, and Takeshi Nakamura. “SOIL PROPERTY COMPARISON BETWEEN ALLOPHANIC AND NON-ALLOPHANIC HORIZONS IN VOLCANIC ASH SOILS OF KYUSHU, JAPAN”. Research Journal of Economics and Sustainable Development 13, no. 3 (September 5, 2025): 1–11. Accessed September 14, 2025. https://aydenjournals.com/index.php/RJESD/article/view/597.