KUCERA, K. P. (1986). Guideline for soil and terrain field descriptions usingUSDA system for Indonesia. Citanduy River Basin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKUCERA, Karl P. Guideline for Soil and Terrain Field Descriptions UsingUSDA System for Indonesia. Ciamis: Citanduy River Basin, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKUCERA, Karl P. Guideline for Soil and Terrain Field Descriptions UsingUSDA System for Indonesia. Citanduy River Basin, 1986.
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