APA (7 वां संस्करण) प्रशस्ति पत्र

Groudev Stojan, Spasova Irena, Schutte Rainer, & University of Mining and Geology St Ivan Rilski. Two-stage microbial leaching of copper and precious metals for a sulphide ore.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Groudev Stojan, Spasova Irena, Schutte Rainer, और University of Mining and Geology St Ivan Rilski. Two-stage Microbial Leaching of Copper and Precious Metals for a Sulphide Ore.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Groudev Stojan, et al. Two-stage Microbial Leaching of Copper and Precious Metals for a Sulphide Ore.

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