Gaya APA

Kalusmeier, H, J., S., I, S, T. (NULL). Learning and teacching concepts a strategy for testing applications ì of theory . New: .

Gaya MLA

Kalusmeier, Herbert, J.., S., I., Sipple,, Thomas. "Learning and teacching concepts a strategy for testing applications ì of theory". New: , NULL. Text.