Fenty Maimunah Simbolon, Murni Sari Rahayu, Yayuk Purwaningrum and Muhamad Zepri 2019. THE EFFECT OF PROVISION OF CHICKEN MANURE AND N-FERTILIZER ON THE GROWTH OF PAKCOY PLANTS (Brassica rapa L.) USING THE PARALON VERTICULTURE SYSTEM. International Journal of Educational Research Excellence. (Dec. 2019), 8–17. DOI:https://doi.org/10.55299/ijere.vi.649.