Gaya APA

SAPUTRA, A, S. et al (2020). The effect of phosphorus and potassium on the growth and quality of viola (Viola Cornuta L.) seed production. . Surakrta: .

Gaya MLA

SAPUTRA, Alfa, Sada. et al. "The effect of phosphorus and potassium on the growth and quality of viola (Viola Cornuta L.) seed production.". Surakrta: , 2020. Artikel.