“TEST THE POTENTIAL GROWTH AND YIELD OF PLANTS PAK CHOI (Brassica rapa Subsp. chinensis (L.) Hanelt Var. Green) THROUGH HYDROPONICS SYSTEM-NUTRIENT FILM TECHNIQUE AT THE LEVEL OF THE CONCENTRATION OF NUTRIENTS ®AB MIX” (2021) Jurnal Agroekoteknologi Terapan, 2(2), pp. 62–69. doi:10.35791/jat.v2i2.35335.