Panjaitan, Nixson, Saudur Simangunsong, Lambok Simatupang, and Weslyh Purba. “Analysis of Factors Affecting the Growth and Development of Maize Crops (Zea Mays L) in Adiankoting Sipoholon and Paranginan Districts”. International Journal of Environment, Agriculture and Biotechnology 8, no. 5 (September 11, 2023). Accessed July 7, 2024. https://i.agriculturejournals.org/index.php/ijeab/article/view/52.