Gaya APA
Practical Problem Solving: Step by Step Method For Solving Problems. (2017).
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Practical Problem Solving: Step by Step Method For Solving Problems.
.
Jakarta:
Elex Media Komputindo,
2017.
.
Gaya MLA
Practical Problem Solving: Step by Step Method For Solving Problems.
.
Jakarta:
Elex Media Komputindo,
2017.
.
Gaya Turabian
Practical Problem Solving: Step by Step Method For Solving Problems.
Jakarta:
Elex Media Komputindo,
2017.
.