(PERSERO), P. P. X. (1977). BLUE BOOK VADEMECUM KOPI (BAG. TANAMAN) (INSTRUKSI DIRUT XVIII/D/INST/158/77). PT PERKEBUNAN XVIII.
Chicago Style (17th ed.) Citation(PERSERO), PT PERKEBUNAN XVIII. BLUE BOOK VADEMECUM KOPI (BAG. TANAMAN) (INSTRUKSI DIRUT XVIII/D/INST/158/77). PT PERKEBUNAN XVIII, 1977.
MLA (8th ed.) Citation(PERSERO), PT PERKEBUNAN XVIII. BLUE BOOK VADEMECUM KOPI (BAG. TANAMAN) (INSTRUKSI DIRUT XVIII/D/INST/158/77). PT PERKEBUNAN XVIII, 1977.
Warning: These citations may not always be 100% accurate.