Basturi Hasan
Effective strategies for the teaching of vocabulary : a comprehensive guidebook
Graha Ilmu, 2018
 Buku Teks SO
Ind, Nicholas
The corporate image : strategies for effective identity programmes
Kogan Page, 1992
 Buku Teks
Effective crime reduction strategies: international perspectives
edited by James F. Albrecht and Dilip K. Das
CRC Press, Taylor & Francis Group, 2011
 Buku Teks
Fischer, Joel
Effective casework practice : an eclectic approach
McGraw-Hill, 1978
 Buku Teks
Discurse a cross cultures: strategies in world Englishes
edited by Larry E. Smith
Prentice-Hall, 1987
 Buku Teks SO