Saijo, Fahruddin Arfianto and Khodir Abdul Maliki 2024. Pengaruh Limbah Sawit dan NPK terhadap Hasil Pakcoy (Brassica rapa subsp chinensis) menggunakan Media Tanah Berpasir: The Effect of Palm Oil Waste and NPK on Pakcoy (Brassica rapa subsp chinensis) Results Using Sandy Soil Media. Jurnal Hortikultura Indonesia (JHI). 15, 2 (Aug. 2024), 91-99. DOI:https://doi.org/10.29244/jhi.15.2.91-99.