APA Style

Pranatri, Felicia, Marpaung, Abdullah Muzi, Kartawiria, Irvan S.. (2012). The Study of formulation of effervescence on butterfly pea petals extract . : Swiss German University.

Chicago Style

Pranatri, Felicia, Marpaung, Abdullah Muzi, Kartawiria, Irvan S.. The Study of formulation of effervescence on butterfly pea petals extract. : Swiss German University, 2012. print.

MLA Style

Pranatri, Felicia, Marpaung, Abdullah Muzi, Kartawiria, Irvan S.. The Study of formulation of effervescence on butterfly pea petals extract. : Swiss German University, 2012. print.

Turabian Style

Pranatri, Felicia, Marpaung, Abdullah Muzi, Kartawiria, Irvan S.. The Study of formulation of effervescence on butterfly pea petals extract. : Swiss German University, 2012. print.