Mahrus M, Raksun A. Pengaruh Dosis Pupuk Urea Terhadap Pertumbuhan Kangkung Darat (Ipomoea reptans poir.). J. Pijar.MIPA [Internet]. 2020 Jun. 10 [cited 2024 May 7];15(3):260-5. Available from: http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/1464