The phrase "the entire article" is correct and usable in written English. You can use it when referring to the entirety of a written or printed text. For example: "I read the entire article and found it very informative."
Read the entire article.
Read the entire article here.
Subscribers can read the entire article.
You can read the entire article here.
(Subscribers can access the entire article).
(Subscribers can access the entire article online).
The entire article is available to subscribers.
(Subscribers can read the entire article online).
Students should read the entire article.
The entire article is available online.
Read the entire article with your class.
When I feel like I can't trust my brain 100%, Ludwig really comes in handy. It makes me translate and proofread faster and my output more reliable.
Claudia Letizia
Head Translator and Proofreader @ organictranslations.eu