एपीए उद्धरण

Winarno, S. T., & Harijani, W. S. (2022). Robusta coffee (Coffea canephora) value chain in East Java, Indonesia.

शिकागो स्टाइल उद्धरण

Winarno, Sri Tjondro, और Wiwik Sri Harijani. Robusta Coffee (Coffea Canephora) Value Chain in East Java, Indonesia. 2022.

एमएलए उद्धरण

Winarno, Sri Tjondro, और Wiwik Sri Harijani. Robusta Coffee (Coffea Canephora) Value Chain in East Java, Indonesia. 2022.