Classification of maturity levels of oil palm fresh fruit bunches using LED-based multispectral imaging methods and principal component analysis Mohammad Fisal Rabin ; Minarni Shiddiq ; Rahmondia Nanda Setiadi ; Ihsan Okta Harmailil ; Ramdani Ramdani ; Dedi Permana Komunikasi Fisika Indonesia 8 Sep 2026 10.31258/jkfi.21.1.91-98
