Zulkifli. (2014). Cash english!: The Easy pathway to speak English with Breakthrough 2/3 amethod (Cetakan II.). Bogor: In Media.
استشهاد بنمط شيكاغوZulkifli. Cash English!: The Easy Pathway to Speak English With Breakthrough 2/3 Amethod. Cetakan II. Bogor: In Media, 2014.
MLA استشهادZulkifli. Cash English!: The Easy Pathway to Speak English With Breakthrough 2/3 Amethod. Cetakan II. Bogor: In Media, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.