“Solid-Phase Synthesis of Tetrapeptide on 2-Chlorotrityl Chloride Resin by Using Benzotriazol-1-Yl-Oxytripyrrolidinophosphonium Hexafluorophosphate As Coupling Reagent”. 2016. Jurnal Kimia Valensi 2 (2): 85-90. https://doi.org/10.15408/jkv.v2i2.4055.