How to install Samsung apps in custom rom crdroid marshmallow on galaxy s4 i9505

I am using custom ROM crdroid marshmallow 6.0.1 on galaxy s4 i9505 but I want to install some Samsung apps like video player, email, gallery etc.
Please tell me from where to download & install Samsung apps.
Thanks.
Email Id. Pharmacist_zohaib@hotmail.com.

Thanks
Zohaib

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