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PT Angin Mamiri uses the construction services of PT Biru Langit to build its new office. The contract value is IDR 500,000,000 excluding VAT and PPh. PT Biru Langit is a construction service company with small qualifications and already has a Construction Business Entity Certificate from the Construction Services Development Agency (LPJK). In the first year the work progress had reached 50% of the contract value and PT Angin had invoiced and invoiced tax from PT Biru Langit.

Question

What journals should PT Angin Mamiri and PT Biru Langit have to do in the first year?